You need to calculate the enthalpy change (AH) of the reaction A + 2B → C.
How can the enthalpies given for the reaction steps below be combined to
give the overall change in enthalpy?
D+B
D+3B
A. AH = AH2-A H₁
B. AH=2AH₁+AH²₂
OC. AH AH ₁ +AH²₂
D. AH = A H₁-AH₂
A
C
A
AH°,
A Hº

Answers

Answer 1

The enthalpy change of the reaction:  A + 2B → C is determined as follows: ΔH = ΔH₁ +  ΔH₂; option C

What is enthalpy change?

Enthalpy change refers to the change in heat content as reactant molecules combine to form products.

The enthalpy change of a multistep reaction is calculated from by summing the enthalpy changes of the intermediate steps that leads to the overall reaction.

Thus, the enthalpy change of the reaction:  A + 2B → C is determined as follows:

ΔH = ΔH₁ +  ΔH₂

In conclusion, the enthalpy change of the reaction is determined from the summation of the enthalpy changes that occur in the intermediate steps.

Learn more about enthalpy change at: https://brainly.com/question/14291557

#SPJ1


Related Questions

Choose the equation below that is balanced correctly.
S8 +24 028 SO3
S8+ 12 0₂8 SO3
6 S8+8 026 SO3
2 S8 +3 022 SO3

Answers

The balanced equation for the reaction between sulfur (S₈) and oxygen (O₂) to form sulfur trioxide (SO₃) is 2S₈ + 16O₂ → 16SO₃.

What is the balanced chemical equation?

Balancing chemical equations involves the addition of stoichiometric coefficients to the reactants and products.

The balanced equation for the reaction between sulfur (S₈) and oxygen (O₂) to form sulfur trioxide (SO₃) is determined as;

2S₈ + 16O₂ → 16SO₃

From the reactants side we can see that sulfur is 16 and also 16 in the product side. The number of oxygen in the reactant side is 32 and also 32 in the product side.

Thus, the balanced equation for the reaction between sulfur (S₈) and oxygen (O₂) to form sulfur trioxide (SO₃) is 2S₈ + 16O₂ → 16SO₃.

Learn more about balanced chemical equation here: https://brainly.com/question/26694427

#SPJ1

Whoever wrote that basic answer to my chemistry question that is NOT the complex equation. One of the reactants is [Cu(OH2)6]^2+
so what's the rest of the equation?

Answers

Here is the balanced chemical equation for the reaction involving [tex][Cu(OH_2)_6]^{2+}:[/tex]

[tex][Cu(OH_2)_6]^{2+} + 4Cl^- = [CuCl_4]^{2-} + 6H_2O[/tex]

In this reaction, [tex][Cu(OH_2)_6]^{2+}[/tex] is a complex ion of copper(II) that reacts with chloride ions to form the complex ion [tex][CuCl_4]^{2-}[/tex] and water molecules.

The balanced equation indicates that for every one mole of [tex][Cu(OH_2)_6]^{2+[/tex] that reacts, four moles of chloride ions are required and two moles of [tex][CuCl_4]^{2-[/tex] and six moles of water are produced.

A balanced chemical equation is a written representation of a chemical reaction that shows the same number of atoms of each element on both the reactant and product sides of the equation.

In other words, the law of conservation of mass is obeyed in a balanced chemical equation, which states that the total mass of the reactants must equal the total mass of the products.

For more question on balanced chemical equation click on

https://brainly.com/question/11904811

#SPJ11

Suppose you were doing a titration where you start out with a basic solution of around 8.0 and you expect to keep adding an acid until the mixture has a pH of 3.0. Based on the indicator chart which pH indicator would be the best one to use. Describe the color change that would be observed

Answers

Based on the information regarding the titration, as the pH of the solution decreases, phenolphthalein will change color to pink.

How to explain the color change

The best indicator to use for a titration where you start out with a basic solution of around 8.0 and you expect to keep adding an acid until the mixture has a pH of 3.0 is phenolphthalein.

Phenolphthalein is an indicator that changes color in the pH range of 8.3 to 10.0. In basic solutions, phenolphthalein is colorless. As the pH of the solution decreases, phenolphthalein will change color to pink. The color change will be observed at the equivalence point of the titration, which is the point at which the amount of acid added is equal to the amount of base present. At the equivalence point, the pH of the solution will be 7.0.

Learn more about titration on

https://brainly.com/question/186765

#SPJ1

help plssss!!!! i need this done by tonight!!!!

Answers

1. Using your knowledge of the Brønsted-Lowry theory of acids and bases, complete the following acid-base reactions and indicate each conjugate acid-base pair.

i. OH + HPO₂ → H₂O + H₂PO₄²⁻

The conjugate acid-base pair is OH/H₂O, HPO₂²⁻/H₂PO₄²⁻

2) Identify the conjugate acid-base pairs in the following reactions. Write A, B, CA, and CB below the appropriate substance.

i. HCO₃⁻ + NH₃ → NH₄⁺ + CO₃²⁻

The conjugate acid-base pair is HCO₃⁻/CO₃²⁻, NH₃/NH₄⁺

ii. HCI + H₂O → H₃O⁺ + Cl⁻

The conjugate acid-base pair is H₂O/OH⁻, HCI/Cl⁻, H₃O⁺/H₂O, Cl⁻/HCI

iii. CH₃COOH + H₂O → H₃O⁺ + CH₃COO⁻

The conjugate acid-base pair is CH₃COOH/CH₃COO⁻, H₂O/OH⁻, H₃O⁺/H₂O

iv. HOCI + NH₃ → NH₄⁺ + ClO⁻

The conjugate acid-base pair is HOCI/ClO⁻, NH₃/NH₄⁺

3. Write the formula for conjugate bases formed by the following acids.

i. HPO₄²⁻ → PO₄³⁻

ii. H₂O → OH⁻

iii. CN⁻ → HCN

iv. HOOC-COO⁻ → HOOCCOOH

4) Write the formula for conjugate acids formed by each of the following bases.

i. H₃O⁺ → H₂O

ii. HCN → H₂CN⁺

iii. NH₃ → NH₄⁺

5. Classify each of the following pH values as acidic, basic, or neutral.

10 - neutral1.5 - acidic7 - neutral7.5 - basic13 - basic1 - acidic

Learn more about Conjugate base pairs here:

https://brainly.com/question/13336099

#SPJ1

What is the change in temperature (AT) when a 25 g block of aluminum absorbs 10,000 J of heat?

Answers

The change in temperature (ΔT) when a 25 g block of aluminum absorbs 10,000 J of heat is approximately 44.32°C.

To calculate the change in temperature (T) that occurs when an aluminium block absorbs a certain quantity of heat, we must utilise the specific heat capacity of aluminium (c) and the equation:

Q = mcΔT

Where Q is the heat absorbed or released, m is the substance's mass, c is the substance's specific heat capacity, and T is the temperature change.

The specific heat capacity of aluminium is approximately 0.897 J/g°C.

Given that the aluminium block weighs 25 g and absorbs 10,000 J of heat, we can plug the following values into the equation:

(25 g) * (0.897 J/g°C) * T = 10,000 J

We can now solve for T:

T = 10,000 joules / [(25 g) * (0.897 J/g°C)]

ΔT ≈ 44.32°C

for more questions on temperature

https://brainly.com/question/4735135

#SPJ11

2H+O2 → 2H₂O
Three grams of hydrogen and 24 grams of oxygen were completely reacted to form
water. Which of the following is the amount of water produced?

Answers

27 grams of water are produced from the given amounts of hydrogen and oxygen.

To determine the amount of water produced from the reaction between hydrogen and oxygen, we need to compare the amounts of reactants (hydrogen and oxygen) to the stoichiometry of the balanced chemical equation.

The balanced equation is:

2H₂ + O₂ → 2H₂O

The molar mass of hydrogen (H₂) is 2 g/mol, and the molar mass of oxygen (O₂) is 32 g/mol.

Given:

Mass of hydrogen = 3 grams

Mass of oxygen = 24 grams

We can calculate the number of moles of each reactant by dividing their respective masses by their molar masses:

Number of moles of hydrogen = 3 grams / 2 g/mol = 1.5 moles

Number of moles of oxygen = 24 grams / 32 g/mol = 0.75 moles

According to the balanced equation, the ratio of hydrogen to water is 2:2, and the ratio of oxygen to water is 1:2. Therefore, the limiting reactant in this reaction is oxygen, as it is consumed in a smaller quantity compared to the stoichiometry of the reaction.

From the reaction, we can see that 1 mole of oxygen produces 2 moles of water. Thus, the number of moles of water produced is twice the number of moles of oxygen:

Number of moles of water = 2 * 0.75 moles = 1.5 moles

To determine the amount of water produced in grams, we multiply the number of moles by the molar mass of water (H₂O), which is approximately 18 g/mol:

Mass of water produced = 1.5 moles * 18 g/mol = 27 grams

for more such questions on water

https://brainly.com/question/19491767

#SPJ11

if two magnets are placed on a table, which statement describes a situation with the most attraction between the two magnets

Answers

The north pole of one magnet is near the South pole of the other magnet.

The ends of a magnet are called its poles. One end is called the north pole, the other is called the south pole. If you line up two magnets so that the south pole of one faces the north pole of the other, the magnets will pull toward each other.

If you heat 400.0 grams of water in a pot on the stove from 20ºC to 99°C, how much heat did the water absorb?​

Answers

The amount of heat absorbed by 400 grams of water from 20°C to 99°C is 132,214.4 J.

How to calculate heat?

The amount of heat absorbed or released by a substance can be calculated using the following equation;

Q = mc∆T

Where;

Q = quantity of heat absorbed or releasedm = mass c = specific heat capacity∆T = change in temperature

According to this question, 400.0 grams of water is heated in a pot on the stove from 20ºC to 99°C. The amount of heat absorbed can be calculated as follows:

Q = 400 × 4.184 × {99 - 20}

Q = 132,214.4 J

Learn more about heat at: https://brainly.com/question/26322639

#SPJ1

what is the density of a liquid that has a volume of 200 mL and a mass of 125 g.

Answers

Answer:

0.625g/mL

Explanation:

D=mass (grams) / Volume (mL or cm^3)

m=125g
V=200mL

D= 125g/200mL= 0.625g/mL

how to get N-methyl-4-(p-tolyldiazenyl)aniline from benzene and toluene

Answers

The synthesis of N-methyl-4-(p-tolyldiazenyl)aniline can be accomplished in a few steps, as outlined below:

Step 1: Nitration of toluene

Step 2: Reduction of p-nitrotoluene

Step 3: Diazotization of p-toluidine

Step 4: Coupling with N-methylaniline

Toluene is first nitrated to form p-nitrotoluene. This can be done by treating toluene with a mixture of nitric acid and sulfuric acid under controlled conditions. The reaction can be represented as follows:

Toluene + HNO3 → p-nitrotoluene + H2O

The p-nitrotoluene is then reduced to form p-toluidine, using a reducing agent such as iron and hydrochloric acid. The reaction can be represented as follows:

p-nitrotoluene + 6HCl + Fe → p-toluidine + 3H2O + FeCl3

The p-toluidine is then diazotized using nitrous acid to form the diazonium salt. The reaction can be represented as follows:

p-toluidine + HNO2 → p-tolyldiazonium chloride + H2O

The diazonium salt is then coupled with N-methylaniline to form N-methyl-4-(p-tolyldiazenyl)aniline. The reaction can be represented as follows:

p-tolyldiazonium chloride + N-methylaniline → N-methyl-4-(p-tolyldiazenyl)aniline + HCl

Overall reaction:

Toluene + HNO3 → p-nitrotoluene + H2O

p-nitrotoluene + 6HCl + Fe → p-toluidine + 3H2O + FeCl3

p-toluidine + HNO2 → p-tolyldiazonium chloride + H2O

p-tolyldiazonium chloride + N-methylaniline → N-methyl-4-(p-tolyldiazenyl)aniline + HCl

It is important to note that these reactions require careful handling and should only be attempted by individuals with proper training and experience in organic chemistry.

For more question on synthesis click on

https://brainly.com/question/30332351

#SPJ11

If a gas occupies 4.76 L at 6.10 °C and 934 torr, what volume would it occupy at 24.0 °C and 670. torr?
Which gas law should you use?

Answers

The gas would occupy approximately 3.00 L at 24.0 °C and 670 torr.

To solve this problem, we can use the combined gas law, which relates the pressure, volume, and temperature of a gas at different conditions. The combined gas law is expressed as:

(P1 × V1) / (T1) = (P2 × V2) / (T2)

where P1, V1, and T1 are the initial pressure, volume, and temperature, respectively, and P2, V2, and T2 are the final pressure, volume, and temperature, respectively.

Using the given values, we can plug them into the equation and solve for V2:

(P1 × V1) / (T1) = (P2 × V2) / (T2)

(934 torr × 4.76 L) / (279.25 K) = (670 torr × V2) / (297.15 K)

Simplifying and solving for V2, we get:

V2 = [(934 torr × 4.76 L) / (279.25 K)] × (297.15 K / 670 torr)

V2 ≈ 3.00 L

For more question on gas click on

https://brainly.com/question/25736513

#SPJ11

SOMEONE PLEASEHELP!!!!!!! Using the graph to the right, answer the following questions:

1. What is the half-life of the radioactive isotope?

2. If someone had 4,000g of the sample remaining, how many half-lives has the sample gone through?

3. How many days would it take to have only 1,000g of the sample remaining?
^^^^show work!!!!!

Answers

The half-life of the radioactive isotope is 8 days.

Mass at 8 days = 8000 g

Number of half-lives in 4000 g = 8000 / 4000 = 2 half life

Time needed for 1000g to remain is 32 days.

The half life of a chemical reaction is the time required by the substance to reach half of its concentration. It is a characteristic property of the  unstable atomic nuclei and the way in which they decay.

For a given reaction the half life of a reactant is the time required for its concentration to reach a value that is the arithmetic mean of its initial and final value. For a reactant that is entirely consumed it is the time taken for the reactant concentration to fall to one half of its initial value.

Learn more about Half life, here:

https://brainly.com/question/31666695

#SPJ1

Does anyone know the answer to this question

Answers

Answer:

A

Explanation:

If Hydrogen is H₂  There will be two silver

and is Carbon is C There will only be one gray

and if Oxygen is O₃ There will be three red

An ideal gas (which is is a hypothetical gas that conforms to the laws governing gas behavior) confined to a container with a massless piston at the top. (Figure 2) A massless wire is attached to the piston. When an external pressure of 2.00 atm
is applied to the wire, the gas compresses from 4.40 to 2.20 L. When the external pressure is increased to 2.50 atm , the gas further compresses from 2.20 to 1.76 L .

In a separate experiment with the same initial conditions, a pressure of 2.50 atm
was applied to the ideal gas, decreasing its volume from 4.40 to 1.76 L
in one step.

If the final temperature was the same for both processes, what is the difference between q for the two-step process and q for the one-step process in joules?

Answers

The difference between q for the two-step process and q for the one-step process is 220.38 joules.

To solve this problem, we use the first law of thermodynamics, which states that change in internal energy (ΔU) of system will be equal to the heat (q) added or removed from the system, minus the work (w) done by or on the system;

[tex]Δ_{U}[/tex] = q - w

For an ideal gas, the internal energy depends only on the temperature, so [tex]Δ_{U}[/tex] is zero if the final temperature is the same for both processes. Therefore, we can set [tex]Δ_{U}[/tex] to zero and solve for the difference in heat (q) between the two processes;

q(two-step) - q(one-step) = w(two-step) - w(one-step)

The work done by or on the gas can be calculated using the equation;

w = -P[tex]Δ_{V}[/tex]

where P is the external pressure, and [tex]Δ_{U}[/tex] is the change in volume. The negative sign indicates that work is done on the gas when it is compressed ([tex]Δ_{U}[/tex] < 0), and work is done by the gas when it expands ([tex]Δ_{U}[/tex] > 0).

For the two-step process, we can calculate the work done in two stages;

w(two-step) = -2.00 atm × (4.40 L - 2.20 L) - 2.50 atm × (2.20 L - 1.76 L)

= -3.32 atm L - 0.605 atm L

= -3.925 atm L

For the one-step process, we can calculate the work done in one step;

w(one-step) = -2.50 atm × (4.40 L - 1.76 L)

= -6.10 atm L

Substituting these values into the equation for the difference in heat, we get;

q(two-step) - q(one-step) = -3.925 atm L - (-6.10 atm L)

= 2.175 atm L

To convert this to joules, we need to multiply by the conversion factor for atm L to joules;

1 atm L = 101.3 J

Therefore; q(two-step) - q(one-step) = 2.175 atm L × 101.3 J/atm L

= 220.38 J

Therefore, the difference in heat between the two processes is 220.38 joules.

To know more about  first law of thermodynamics here

https://brainly.com/question/3808473

#SPJ1

Estimate the pH and Fraction (in terms of percentage) CH3COOH molecules deprotonated in 0.15 M CH3COOH ​

Answers

The pH of the 0.15 M [tex]CH_3COOH[/tex] solution is approximately 2.38. and around 2.9% of the [tex]CH_3COOH[/tex] molecules in the 0.15 M solution are deprotonated.

Acetic acid ([tex]CH_3COOH[/tex]) is a weak acid that only partially dissociates in water to form [tex]H^+[/tex] ions and [tex]CH_3COO^-[/tex] ions. To estimate the pH and fraction of [tex]CH_3COOH[/tex]molecules deprotonated in a 0.15 M [tex]CH_3COOH[/tex]solution, we can use the following equations and approximations:

The dissociation constant for acetic acid (Ka) is 1.8 x 10^-5.

The initial concentration of [tex]CH_3COOH[/tex] is equal to its concentration at equilibrium, since it only partially dissociates.

The concentration of [tex]H^+[/tex] ions is equal to the concentration of [tex]CH_3COO^-[/tex] ions at equilibrium, since the dissociation reaction involves a 1:1 ratio of [tex]H^+[/tex] ions to [tex]CH_3COO^-[/tex] ions.

Using these approximations, we can set up an equilibrium expression for the dissociation of [tex]CH_3COOH[/tex] :

[tex]Ka = [H^+][CH_3COO^-]/[CH_3COOH][/tex]

We also know that the initial concentration of [tex]CH_3COOH[/tex] is 0.15 M. Let x be the concentration of [tex]H^+[/tex] ions and [tex]CH_3COO^-[/tex] ions at equilibrium. Then:

[[tex]H^+[/tex]] = x

[[tex]CH_3COO^-[/tex]] = x

[[tex]CH_3COOH[/tex]] = 0.15 - x

Substituting these values into the equilibrium expression and solving for x, we get:

Ka = x^2 / (0.15 - x)

1.8 x 10^-5 = x^2 / (0.15 - x)

x = 0.0042 M

The pH can be calculated using the formula:

pH = -log[[tex]H^+[/tex]]

pH = -log(0.0042)

pH = 2.38

Therefore, the pH of the 0.15 M [tex]CH_3COOH[/tex] solution is approximately 2.38.

To estimate the fraction of [tex]CH_3COOH[/tex] molecules that are deprotonated, we can use the equation:

Fraction deprotonated = [tex][CH_3COO^-] / [CH_3COOH][/tex] x 100%

At equilibrium, the concentration of [tex]CH_3COO^-[/tex] ions is equal to the concentration of [tex]H^+[/tex] ions, which we calculated to be 0.0042 M. The concentration of [tex]CH_3COOH[/tex] at equilibrium is 0.15 - 0.0042 = 0.1458 M. Substituting these values into the equation, we get:

Fraction deprotonated = 0.0042 / 0.1458 x 100%

Fraction deprotonated = 2.9%

For more question on pH   click on

https://brainly.com/question/172153

#SPJ11

For this question, choose THREE answers. A student adds two chemicals together in lab and observes a succe
ssful reaction. Which of the following can be assumed about the reactants they used?

Answers

Answer is Answer

Explanation:

The three correct answers about the reactants they used for a successful reaction are:

They successfully collided with each other.They had the minimum activation energy.They were oriented in the correct direction.

What is the collision theory?

The collision theory states that successful chemical reactions occur when reactant particles collide with each other with sufficient energy and proper orientation.

Based on the collision theory,  for a successful reaction to occur, the reactants must collide with each other with sufficient energy (activation energy) and in the correct orientation.

Learn more about the collision theory at: https://brainly.com/question/20628781

#SPJ1

Complete question:

For this question, choose THREE answers. A student adds two chemicals together in lab and observes a successful reaction. Which of the following can be assumed about the reactants they used?

They had the minimum activation energy.

They did not have the minimum activation energy.

They were not oriented in the correct direction.

They were oriented in the correct direction.

They did not successfully collide with each other.

They successfully collided with each other.

The total pressure of gas collected over water is 770.0 mmHg and the temperature is 23.0 degrees Celsius what is the pressure of hydrogen gas formed in mmHg?

Answers

To calculate the pressure of hydrogen gas formed in mmHg, we need to apply the concept of Dalton's Law of Partial Pressures, which states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of each individual gas in the mixture.

Given that the total pressure of gas collected over water is 770.0 mmHg, we can assume that this gas mixture contains water vapor and hydrogen gas. We need to determine the partial pressure of hydrogen gas in the mixture.

First, we need to determine the vapor pressure of water at the given temperature of 23.0 degrees Celsius. According to a vapor pressure table, the vapor pressure of water at 23.0 degrees Celsius is 21.1 mmHg.

Next, we can use Dalton's Law of Partial Pressures to calculate the partial pressure of hydrogen gas:

Total pressure = Partial pressure of hydrogen gas + Partial pressure of water vapor

770.0 mmHg = Partial pressure of hydrogen gas + 21.1 mmHg

Partial pressure of hydrogen gas = 770.0 mmHg - 21.1 mmHg = 748.9 mmHg

Therefore, the pressure of hydrogen gas formed in the mixture is 748.9 mmHg.

Drag the tiles to the correct boxes to complete the pairs.
Match each decimal number to the correct scientific notation.
3.07 x 10-6
3.07 x 106
3.07 x 10-4
3.07 x 104


Answers

Answer:

Explanation:

The matching of each decimal number to the correct scientific notation is as follows:

3.07 x 10^-6 -> D) 3.07 x 10^-6

3.07 x 10^6 -> B) 3.07 x 10^6

3.07 x 10^-4 -> A) 3.07 x 10^-4

3.07 x 10^4 -> C) 3.07 x 10^4

So, the correct matching is:

D) 3.07 x 10^-6

B) 3.07 x 10^6

A) 3.07 x 10^-4

C) 3.07 x 10^4

an element consists of 3 isotopes. isotopes A has an abundance of 45.6 % and it’s mass is 14.0 amu. Isotope B has an abundance of 25.2%, and has a mass of 15 amu, and isotope c has an abundance of 29.2% and it’s mass is 16 amu. What is the atomic mass of the element

Answers

The quantity of protons, neutrons, and electrons that each element has makes it unique.

Each chemical element's atoms has the same number of protons and electrons, which is important because neutrons' quantities are variable.

Isotopes are atoms with the same number of protons but differing numbers of neutrons.

They differ in mass, which affects their physical characteristics even if they have nearly identical chemical properties. There are unstable isotopes that emit radiation as well as stable isotopes that do not. These are referred to as radioisotopes.

Thus, The quantity of protons, neutrons, and electrons that each element has makes it unique.

Learn more about Electrons, refer to the link:

https://brainly.com/question/1255220

#SPJ1

Please Help me solve for B

Answers

The velocity of the tomato when it hits the ground is approximately 13.49 meters per second.

The potential energy of the tomato is at the height of 10 meters. When the tomato hits the ground, most of the potential energy is E1 = 0.909*mgh.

By the conservation of energy principle, the kinetic energy [tex]E_1[/tex] is equal to the kinetic energy [tex]E_2[/tex] of the tomato just before it hits the ground.

The kinetic energy [tex]E_2[/tex] is given by[tex]1/2mv^2[/tex], where v is the velocity of the tomato just before it hits the ground. Equating [tex]E_1[/tex] and [tex]E_2[/tex] solving for v, we get:

[tex]v = \sqrt{(20.909gh)[/tex]

Substituting the values of [tex]g = 9.81 m/s^2[/tex]and h = 10 m, we get:

v = [tex]\sqrt{(20.9099.81*10)}[/tex] = 13.49 m/s

To know more about potential energy, here

brainly.com/question/24284560

#SPJ1

--The complete Question is, Suppose a tomato is dropped from a height of 10 meters. If 90.9% of the work done on the tomato is converted to kinetic energy by the time it hits the ground, what is the velocity (in meters per second) of the tomato when it hits the ground? --

3.31 grams of hydrogen nitrate is mixed with 750.0 ml of water to make a solution.
a. What is the molarity of this solution?
b. Calculate both the hydronium ion and hydroxide ion concentrations of this solution.
c. Find both the pH and the pOH of this solution.
d. Is this solution an acid or a base?
c. Write the balanced chemical equation for when this solution is mixed with sodium hydroxide.
f. Label the acid, base, conjugate acid, and conjugate base for this reaction.

Answers

a)The molarity of this solution is 0.07 M.

b)The hydronium ion concentration is 0.07 M, and the hydroxide ion concentration is approximately 1.43 x 10^(-13) M.

c)The pH ≈ 1.15 & pOH ≈ 12.85

d)This solution is an acid.

e)HNO₃ + NaOH → NaNO₃ + H₂O

f)HNO₃ is the acid.

NaOH is the base.

NaNO₃ is the conjugate acid of the base NaOH.

H₂O is the conjugate base of the acid HNO₃.

To find the molarity (M) of the solution, we need to calculate the number of moles of solute (hydrogen nitrate) and divide it by the volume of the solution in liters.

a.The molar mass of hydrogen nitrate (HNO3) is 63.01 g/mol.Moles of HNO3 = 3.31 g / 63.01 g/mol = 0.0526 mol

Volume of solution in liters = 750.0 mL / 1000 mL/L = 0.750 L

Molarity (M) = Moles of solute / Volume of solution in liters

M = 0.0526 mol / 0.750 L ≈ 0.070 M

b. Hydrogen nitrate (HNO3) dissociates in water to form hydronium ions (H3O+) and nitrate ions (NO3-). Since the compound is a strong acid, it fully dissociates. Thus, the concentration of hydronium ions and nitrate ions is the same as the molarity of the solution, which is 0.070 M.

c. The pH and pOH can be calculated using the formulas: pH = -log[H3O+] and pOH = -log[OH-]. Since the solution is acidic, [H3O+] = 0.070 M.

pH = -log(0.070) ≈ 1.155

pOH = 14 - pH ≈ 14 - 1.155 ≈ 12.845

d. This solution is an acid since it contains hydronium ions (H3O+), which are characteristic of acidic solutions.

e. The balanced chemical equation for the reaction between hydrogen nitrate (HNO3) and sodium hydroxide (NaOH) is:

HNO3 + NaOH -> NaNO3 + H2O

f. In this reaction, HNO3 acts as the acid (donates a proton, H+), NaOH acts as the base (accepts a proton, OH-), NaNO3 is the conjugate base of HNO3, and H2O is the conjugate acid of OH-.

For more such questions on molarity

https://brainly.com/question/30123776

#SPJ11

how to synthesize tripropylamine from propylene

Answers

The reactions that result in the emission of light involve the ruthenium label and tripropylamine (TPA), two electrochemically active molecules.

Thus, The electrode surface inside the measurement cell is where the reactions take place.

The ruthenium label is oxidized at the electrode surface as an electrical potential is applied, and TPA is oxidized into a radical cation that spontaneously loses a proton.

When the resultant TPA radical interacts with oxidized ruthenium, the ruthenium label enters an excited state and emits a photon (620 nm) before decaying. The ruthenium label is renewed and ready to carry out numerous light-generating cycles as it goes back to its ground state.

Thus, The reactions that result in the emission of light involve the ruthenium label and tripropylamine (TPA), two electrochemically active molecules.

Learn more about tripropylamine, refer to the link:
https://brainly.com/question/32070784?

#SPJ1

Attached below! I need help for part B

Answers

The heat capacity of a system is defined as the amount of heat required to raise the temperature through 1°C. It is denoted by c. It is an extensive property. The mass of steel bar is 47.93 g.

Here the amount of heat taken by the steel rod is equal to the amount of heat lost by water. The heat required to raise the temperature of the sample of mass 'm' having specific heat 'c' is:

Q = c (T - T₀) m

Cs (Ts - T0s) ms = -Cw (Tw - T0w) mw

ms = - Cw (Tw - T0w) mw / Cs (Ts - T0s)

Mass of water = 110 mL × 1.00 g / mL = 110.00 g

ms = -4.18 J / g°C × (21 .10 - 22.00) 110.00 g / 0.452 J / g°C (21.10 - 2.00) = 47.93 g

To know more about heat capacity, visit;

https://brainly.com/question/29766819

#SPJ1

What is the energy associated with the formation of 2.55 g of 4He by the fusion of 3H and 1H?

Substance Mass (u)
4He 4.00260
3H 3.01605
1H 1.00783

Answers

The energy associated with the formation of 2.55 g of 4He by the fusion of 3H and 1H is approximately -[tex]2.57 * 10^{-12 }.[/tex] Joules

How do we calculate?

The balanced nuclear equation for the fusion of 3H and 1H to form 4He is shown below:

3H + 1H → 4He

We find that the difference in mass between the reactants and products is: (3 × 3.01605 u) + (1 × 1.00783 u) - (1 × 4.00260 u) = -0.01854 u

Einstein's energy equation is E = mc².

E = (-0.01854 u) × (1.66054 × 10^-27 kg/u) × (2.998 × 10^8 m/s)^2

E = [tex]-4.03 * 10^{-12}[/tex] J

The number of reactions  =  2.55 g / 4.00260 g/mol = 0.637 mol

The total energy is =  [tex]-4.03 * {10^-12} J[/tex]× 0.637 mol

total energy = [tex]2.57 * 10^{-12} J[/tex]

Learn more about Einstein's energy equation at:

https://brainly.com/question/27158464

#SPJ1

H₂F5BLi
plsssss helppp ima fail if i don’t go this

Answers

The chemical elements involved are; hydrogen, fluorine, boron and lithium

There are two hydrogen atoms, five fluorine atoms, one boron atom and one lithium atom.

What is a chemical formula?

Chemical compounds are represented symbolically by chemical formulas, which reveal the types and amounts of atoms that make up the compound. It is a succinct approach to explain a substance's makeup.

The components of a compound are identified in a chemical formula by their corresponding chemical symbols, which are typically derived from their English or Latin names. The number of atoms of each element in a single compound molecule is indicated by the subscripts that follow each element.

Learn more about chemical formula:https://brainly.com/question/32018188

#SPJ1

25g of NH3 is mixed with 4 mole of O2 is the given reaction
a.which is the limiting reaction
b.what mass of no is formed
c.what mass of h2o is formed

Answers

A) limiting reactant

B) 44.1 g

C) 39.6 g

please help me!!!!!! Polonium-290 has a half-life of 57.6 years. If you start with a 10-gram sample of polonium-290, how much will be left after 172.8 years
^^^MUST SHOW WORK

Answers

It is significant to remember that the order of a reaction affects how a reaction's half-life is calculated. It is commonly expressed in seconds and is represented by the sign "t 1/2." The amount which is left after 172.8 years is 0.8 g.

The time it takes for the concentration of a particular reactant to reach 50% of its initial concentration, or the time it takes for the reactant concentration to reach half of its initial value, is known as the half-life of a chemical reaction.

To calculate the remaining amount:

N₀ / N = 2ⁿ

n = time / t1/2

172.8 / 57.6 = 3

N = 2ⁿ / N₀

N = 2³ / 10 = 0.8 g

To know more about half-life, visit;

https://brainly.com/question/31821452

#SPJ1

Two samples of carbon come into contact. A heat transfer will occur between sample A and sample B. What must be true
for heat to transfer from sample A to sample B?
The average kinetic energy of A is greater than that of B.
The average kinetic energy of B is greater than that of A.
The average kinetic energy of both samples is equal.
The average kinetic energy does not determine the direction of heat transfer.
Mark this and return
Save and Exit
56:26
Next
Submit

Answers

The average kinetic energy of A must be greater than that of B for heat to transfer from sample A to sample B.

Identify Cause and Effect
Directions: Read the pairs of statements below. On the line next to each statement,
write C if the statement is a cause and E if the statement is an effect. The first one is
done for you.
C
E
1. Wood is burned in a fireplace.
Thermal energy is released.
2. Carbon dioxide is formed.
Carbon combines with oxygen.
3. Solar panels can collect solar energy.
Solar energy is given off by the sun.
4. Thermal energy is released when coal is burned.

Answers




1. C (Cause: Wood is burned in a fireplace; Effect: Thermal energy is released.)
2. E (Cause: Carbon combines with oxygen; Effect: Carbon dioxide is formed.)
3. C (Cause: Solar panels can collect solar energy; Effect: Solar energy is given off by the sun.)
4. C (Cause: Thermal energy is released when coal is burned; Effect: Thermal energy is released)

What is the density of an unknown compound in g/ml if 1.28 pounds of the compound has a volume of 4.50L

Answers

First, we need to convert the mass of the compound from pounds to grams:
1.28 pounds * 453.59 grams/pound = 580.61 grams

Next, we can use the formula for density:
Density = Mass / Volume

Density = 580.61 grams / 4.50 L

Density = 128.91 g/L

Therefore, the density of the unknown compound is 128.91 g/L or 0.12891 g/mL (since there are 1000 mL in 1 L).
Other Questions
A commercial process for preparing ethanol (ethyl alcohol),CH, OH, consists of passing ethylene gas,CH4, and steam over an acid catalyst to speed up the reaction. The gas phase reaction isH. H. H H\. /. | |C=C. + H-OH-> H-C-C-OH/. \. | |H. H. H. HUse bond enthalpies to estimate the enthalpy change for this reaction when 28.1 g of ethyl alcohol is produced.BE(C-H) = 413 kJ/molBE(C-C)=348 kJ/molBE(C-0) 358 kJ/molBE(C C) 614 kJ/molBE(O H)= 463 kJ/molEnthalpy change=____ KJ Nehemiah wrote that 4 + 4 = 8. Then he wrote that 4 + 4 k = 8 k. Select the phrases that make the statement true A quality that allows your product/process be considered among all other options is a(n):a. Order winnerb. Order qualifierc. Order loserd. Order function find the limit (if it exists). (if an answer does not exist, enter dne.) lim t 0 e4ti sin(2t) 2t j e3tk Let a,b,c be positive numbers. Find the volume of the ellipsoid{ (x,y,z) R3 : x2/ a2 + y2/ b2 + z2/ c2 wc. carly hires an employee on december 1st, who gets paid bi-weekly. on december 31st, carly owes the employee $440, which will be paid on january 1st of the next year./ quizletmeasures of central tendency include all except: a. standard deviation b. median c. mean d. mode why is the saying, "treat others as you would want to be treated" not appropriate to use in the health care setting? PLEASE HELP ASAP If the Magnitude of Vector vec(w) is 48 and the direction is 235 degrees find vec(w) in component form. find the standard form of the equation of the hyperbola with the given characteristics. vertices: (2, 4) foci: (2, 5) let an = 3n 7n 1 . (a) determine whether {an} is convergent. convergent divergent (b) determine whether [infinity] an n = 1 is convergent. A student wants to simulate a fair coim toss using a random digsit table. Which of the following (l point) best simulates this situation? Let the digits 0. 1,2,3,4, and 5 represent heads, and let digits 6, 7, 8 and 9 represent the tails Use a table of random digits Choose the first 10 digits in the table to record the mumbes of heads and tails 0 Let the digits 0,1,2,3,4, and 5 represent heads, and let dupits 6, 7,8, and 9 represent tals Use a table of randon digits Choose the first 10 digits in the table and record the heads and tails Continue to choose batches of 10 digits for a total of 100 times, recording the number of beads and tails 2,3 and 4 represent heads, and let digits 5.6,7,8 and 9 represent tails Use a table ofrand m digits Choose the first Odra n te table to read te hteof heads and tails eLethe digts 0. 1.2.3, amd 4 rqpresent he hoada, and t di ,..,dtUleomo digts heads and tasls Continue to choose batches of 10 digits for a total of 100 times, recording the mamber of heads and tasls ls, and let digits 5,6,7,8, and 9represent tails Use a table of random digits Choose the first 10 digits in the table and recond the number of research on social facilitation would suggest that, in general, runners would ____ when running alongside others as opposed to running alone. Which of the following endurance training adaptations does NOT result in lower lactate production in the contracting muscles? increased glycogen utilization. -John says that continental crust is being destroyed at Point A. -Mike says that continental crust is sinking under oceanic crust. -Myra says that two continental plates are colliding to form mountains. -Andrea says that oceanic crust is sinking under continental crust. -Tom says that oceanic crust has more density and gets destroyed at Point A. Which two students have the most correct explanation? A. John and Mike B. Mike and Andrea C. Andrea and Tom D. Myra and Tom Pure Monopoly 25 100 90 80 O 70 0.14 polnts Print MC-ATC O 40 O 20 10 MR 10 20 30 40 50 60 70 80 90 100 Quantity Suppose the firm does not have the ability to price discriminate Instructions: Enter your answers as a whole number. a. The firm will charge $ b. The firm will generate profits of $ 625 Suppose instead the firm has the ability to first-degree price discriminate C. The firm will generate profits of $ 65 and sell 25 units Mc Graw KPrev 25 o For most economists, an important date for understanding the role of government in the economy is the year O 1914. O 1861. O 1945. O 1929. O 1776. If a current of 2.4 A is flowing in a cylindrical wire of diameter 2.0 mm, what is the average current density in this wire?Answera.3.6 b. 3.4c. 2.5 Although stereotyping may be a natural way to efficiently categorize information, the content of stereotypes is ______ A newsletterA public announcementFace-to-face communicationThe office grapevine