The molar mass of sulfuric acid (H₂SO₄) is approximately 98.08 g/mol.
Look up the atomic masses of each element in the formula:
Hydrogen (H): 1.01 g/mol
Sulfur (S): 32.06 g/mol
Oxygen (O): 16.00 g/mol
Count the number of atoms of each element in one molecule of sulfuric acid:
2 atoms of hydrogen (H)
1 atom of sulfur (S)
4 atoms of oxygen (O)
Multiply the atomic mass of each element by the number of atoms of that element, then add the results together:
(2 x 1.01 g/mol) + (1 x 32.06 g/mol) + (4 x 16.00 g/mol) = 98.08 g/mol
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--The complete question is, What is the molar mass of H₂SO₄?--
why is sodium benzoate more soluble in water than benzoic acid?
Because of the undissociated benzoic acid's role in its antibacterial activity, the two chemicals are being thought of as a unit. Sodium benzoate is a form of benzoic acid that is mildly soluble in water.
What role does sodium play in the body?
The main function of the body's sodium levels is to regulate and control blood volume at all times. Blood volume and the fluid content around cells are both influenced by the full sum of sodium present in the body.
What kind of material is sodium?
Sodium. Alkali metal class (Group 1 [Was / is]) of the 2 of the periodic element sodium (Na). The element sodium has a very delicate silvery-white. Sodium makes up 2.8 percent of the Earth's crust and is the most prevalent alkali metal and sixth most plentiful element on the planet. In nature, it is abundant in compounds
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Write the formula for Potassium Permanganate.
Answer:
KMnO4
Explanation:
The chemical formula for potassium permanganate is KMnO4.
꧁༒αηѕωєяє∂ ву gσ∂кєу༒꧂
Answer:
KmN04
Explanation:
.....,...........
if you wanted to find iron and sulfur on the moon, where would you look:
a) inside the moon's craters b) in the maria, or seas c) inside the moon's core
You should look within the moon's core if we were interested in discovering iron & sulfur there.
What really is sulfur used it for?Sulfuric acid, which would be utilized in numerous industries, is frequently made from sulfur. Particularly, lead-acid batteries and fertilizers are made with sulfuric acid. Inorganic compounds, explosives, cement, & glass are all made with sulfur as well.
Why is sulfur poisonous?High concentrations of the metal and its poisonous volatile compounds in the environment are chiefly responsible for sulfur poisoning. By producing bronchitis, bronchoconstriction, as well as increased pulmonary resistance, sulfur dioxide (SO(2)), a common air pollutant, may have a negative impact on both animal and human health.
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Why is a fluted filter paper used in gravity filtration?a. to allow a rapid filtrationb. to ensure that the product is not lost during filtrationc. to allow the sample to cool down fasterd. has a larger surface area than the regular filter papere. Both a and d are correct
e. Both a and d are correct.A fluted filter paper is used in gravity filtration because it has a larger surface area than regular filter paper, allowing for faster and more efficient filtration.
The fluted design of the paper creates channels that increase the surface area, allowing for a greater volume of liquid to pass through the paper per unit time. This increases the rate of filtration and ensures that the process is completed more quickly.Option e is the correct answer because both a and d are correct. The larger surface area of the fluted filter paper allows for a faster filtration rate while also providing more area for the sample to be filtered, reducing the risk of sample loss. The use of a fluted filter paper is particularly useful when filtering large volumes of liquid or when the liquid contains a large amount of particulate matter that could clog the filter paper.
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How are incomplete and complete metamorphoses the same?
Insects that go through these cycles form a cocoon.
Insects that go through these cycles start as an egg.
The infant insects that go through these cycles look different from the adult.
The insects that go through these cycles reproduce by laying unfertilized eggs.
Incomplete and complete metamorphoses are similar in that they both start as an egg and the infant insects that go through these cycles look different from the adult. Options 2 and 3.
Complete and incomplete metamorphosisIn both types of metamorphoses, the insect starts as an egg and hatches into a larva or nymph. The larva or nymph of both types of metamorphoses looks different from the adult, and they both go through multiple developmental stages before reaching adulthood.
However, incomplete and complete metamorphoses differ in several ways:
insects that go through incomplete metamorphosis do not form a cocoon, and the developmental changes between the larval stage and the adult are gradual, with the immature stages resembling the adult.insects that undergo complete metamorphosis form a cocoon or pupa, and the developmental changes between the immature and adult stages are more drastic, with the immature stages looking very different from the adult.insects that go through incomplete metamorphosis lay fertilized eggs, while those that go through complete metamorphosis reproduce by laying unfertilized eggs.More on complete and incomplete metamorphosis can be found here: https://brainly.com/question/29061320
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2KClO3 Right arrow. 2KCl + 3O2
How many moles of oxygen are produced when 2 mol of potassium chlorate (KClO3) decompose?
1
2
3
6
Answer:
3 moles
Explanation:
The balanced chemical equation for the decomposition of potassium chlorate is:
2KClO3 → 2KCl + 3O2
This means that for every 2 moles of KClO3 that decompose, 3 moles of O2 are produced. We are given that 2 moles of KClO3 decompose, so we can use the stoichiometry of the balanced equation to determine the amount of O2 produced.
2 moles KClO3 × (3 moles O2 / 2 moles KClO3) = 3 moles O2
Therefore, 3 moles of O2 are produced when 2 moles of KClO3 decompose.
scba can help protect from _____, which can be caused by inhaling heated gases.
SCBA (Self-Contained Breathing Apparatus) can help protect from smoke inhalation, which can be caused by inhaling heated gases.
When a fire occurs, the heat of the flames can cause the release of toxic gases and particles, including carbon monoxide, hydrogen cyanide, and soot, which can cause respiratory problems and even death if inhaled in high concentrations.
SCBA provides a supply of clean air to firefighters and other emergency responders, allowing them to breathe safely in hazardous environments. It is an essential tool for firefighters and other rescue workers who must enter burning buildings or other dangerous situations to perform their duties.
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How long would it take a family leaving the mountain to get home if they live 270 km away and they wanted to make it home in three hours
Which agricultural practices result in methane emission? Select the two correct answers. a. clearing land for farms b. refrigeration c. manure management techniques d. rice cultivation
Many agricultural practices involve the emission of greater amounts of methane. The two agricultural practices which result in methane emission is manure management techniques and rice cultivation. The correct options are C and D.
What is methane?The methane is defined as the simplest hydrocarbon with a chemical formula CH₄. It contains four 'H' atoms and one 'C' atom and it is the simplest alkane.
The main sources of methane emissions from agriculture are enteric fermentation, manure management, rice cultivation and residue burning. The production of methane also occurs animal wastes. Methane emissions occurs from paddy rice when soils are flooded.
Thus the correct options are C and D.
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Solid zinc oxide (ZnO) is added to hydrochloric acid (HCl) to form zinc chloride (ZnCl2) in water (H2O). How many moles of zinc chloride (ZnCl2) will be produced when 112 grams of zinc oxide (ZnO) is used?
The number of moles of zinc chloride produced will also be 1.376 mol when 112 grams of zinc oxide (ZnO) is used.
The balanced chemical equation for the reaction between zinc oxide and hydrochloric acid is:
ZnO + 2HCl → ZnCl₂ + H₂O
From the equation, we can see that 1 mole of zinc oxide reacts with 2 moles of hydrochloric acid to produce 1 mole of zinc chloride and 1 mole of water.
The molar mass of zinc oxide (ZnO) is 81.39 g/mol, so 112 grams of zinc oxide is equal to:
112 g / 81.39 g/mol = 1.376 mol ZnO
According to the balanced chemical equation, 1 mole of zinc oxide produces 1 mole of zinc chloride, so the number of moles of zinc chloride produced will be 1.376 mol.
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What is likely to be true about the ∆H for this reaction?
C2H6 (l) → C2H6 (s)
A. ∆H>0
B. ∆H<0
C. ∆H=0
Answer:
B. ∆H<0
Explanation:
The change in enthalpy (∆H) for a reaction is a measure of the amount of heat that is absorbed or released during the reaction. A positive ∆H indicates that the reaction is endothermic, meaning that heat is absorbed during the reaction. A negative ∆H indicates that the reaction is exothermic, meaning that heat is released during the reaction. A ∆H of zero indicates that the reaction is thermally neutral, meaning that there is no heat transfer during the reaction.
In the given reaction, C2H6 (l) → C2H6 (s), the substance changes from a liquid to a solid, which typically involves a decrease in entropy (or disorder) of the system. This means that the reaction is exothermic, because the decrease in entropy is usually accompanied by a release of heat. Therefore, we would expect the ∆H for this reaction to be negative, which means that B. ∆H<0 is likely to be true for this reaction.
What must break in order for water to change from solid to liquid to gas?A. ionic bondsB. movement of water moleculesC. hydrogen bonds between water moleculesD. nonpolar covalent bonds
Hydrogen bonds between water molecules must break in order for water to change from solid to liquid to gas and the correct option is option C.
What are Hydrogen bonds?A hydrogen bond is a kind of bonding that is present between an atom of hydrogen and a pair of other atoms having a high electronegativity.
Hydrogen-bonding used to be competitively weaker than ionic bonding or covalent bonding, but it is stronger than van der Waals forces.
When the heat is raised (for instance, as water is boiled), the higher kinetic energy of the water molecules causes the hydrogen bonds to break completely and allows water molecules to escape into the air as gas. We observe this gas as water vapor or steam.
Therefore, hydrogen bonds between water molecules must break in order for water to change from solid to liquid to gas and the correct option is option C.
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according to solubility rules, which compound should not dissolve in water?
According to solubility rules, water insoluble compound should not dissolve in water.
What is solubility?Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.
The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.
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how are the hydrogen bonds formed between water molecules?
When the negative end of one water molecule is drawn toward the positive end of another water molecule, a hydrogen bond is created between the two water molecules.
Amazingly, water can cling to both other substances and to itself. The cohesion characteristic of water is the ability of water molecules to attract other water molecules, making water a "sticky" liquid.
The disparity in charge between hydrogen ions that are slightly positive and other hydrogen ions that are slightly negative results in hydrogen bonds, which are electrostatic forces that attract. Hydrogen bonds develop between nearby hydrogen and oxygen atoms of adjacent water molecules in the case of water. A connection called a hydrogen bond is produced by the attraction between individual water molecules.
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how acetone boiling point ?
The boiling point of acetone is approximately 56.1 degrees Celsius or 132.98 degrees Fahrenheit at standard atmospheric pressure (1 atmosphere or 760 mmHg)
At typical atmospheric pressure, the boiling point of acetone is approximately 56.1 degrees Celsius or 132.98 degrees Fahrenheit (1 atmosphere or 760 mmHg). At this temperature and pressure, acetone will boil and transform from a liquid to a gas.
It should be noted that the boiling point of acetone can vary slightly depending on the pressure used to measure it. At greater pressures, the boiling point is somewhat higher, while at lower pressures, it is slightly lower.
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what is the temperature of a sample of ozone (o3) with an average kinetic energy of 1.73 kj/mol
The temperature of a sample of ozone (o3) with an average kinetic energy of 1.73 kj/mol will be 1.73=3/2 x 8.3144 x T (T=138.72).
The average kinetic energy of a substance's particles is inversely correlated with that substance's temperature, according to the kinetic-molecular theory. When a material is heated, some of the energy absorbed is retained by the particles, while other energy quickens the motion of the particles. The material's temperature increases as a result of this.
The combination of each gas molecule's half mass and its square RMS speed yields the average kinetic energy of a gas molecule. The average kinetic energy of a substance's particles is directly proportionate to the substance's temperature. These particles must move more quickly as the temperature increases because their mass is constant.
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QuestionIn Xylem_____ and _____ transport minerals vertically.ATracheidsBVessels
In Xylem tracheids and vessels transport minerals vertically.
Water and mineral transportation in plants:
1. Phloem carries nutrients, whereas xylem carries water and minerals.
2. The phloem and xylem are the principal tissues in charge of this flow.
Tracheids:
1. The xylem of vascular plants contains tubular cells called tracheids, which are in charge of carrying root water to the leaves.
2. They exist in all varieties of vascular plants (Pteridophytes, and Gymnosperms).
3. They feature a thin cell wall and cross-sections that are polygonal.
Vessels:
1. Vessels are elongated dead cells with ruptured cell walls that are found in the transpiration stream of flowering plants and allow water to pass through.
2. They are only found in angiosperm plants.
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what is the density of CHCl3 vapor at 1.09 atm and 307.9 K
The density of the CHCl₃ vapor can be determined using ideal gas equation. At a pressure of 1.09 atm and temperature of 307.9 K, the density of the vapor is 5.10 g/L.
What is ideal gas equation ?Ideal gas equation relating the temperature, pressure, volume and number of moles of a gas is written as follows:
PV = nRT.
n = W/M
then P = W/M VRT
Where W/V = density D
then ,
PM = DRT.
given
P = 1.09 atm
Molar mass of M of CHCl₃ = 119.5 g/mol
T = 307.9 K
R = 0.082 L atm/K mol.
Then Density D = PM/RT
D = (1.09 atm × 119.5 g/mol)/(0.082 L atm/K mol ×307.9 K)
= 5.1 g/L.
Therefore, the density of CHCl₃ vapor at the given conditions is 5.1 g/L.
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What is CH3Cl strongest intermolecular forces?
Intermolecular interactions in [tex]CH_3Cl[/tex] (methyl chloride) include dipole-dipole forces and London dispersion forces. Dipole-dipole forces are the strongest intermolecular interactions in [tex]CH_3Cl[/tex].
The electronegative nature of the chlorine atom makes it more electronegative than the carbon and hydrogen atoms, making methyl chloride a polar molecule with a net dipole moment. The partial positive and negative charges of the chlorine atom and the carbon atom combine to form a dipole, which may interact with other polar molecules and cause dipole-dipole interactions. London dispersion forces also have an impact on intermolecular interactions in [tex]CH_3Cl[/tex]. These forces are caused by the temporary dipoles that can occur from the molecule's transient variations in electron density. These transient dipoles can communicate with one another and with permanent dipoles in the system.
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How many grams of water are produced by the combustion of 32.0g of ch4?
CH4+202–>2H2+CO2
Show your work
The combustion reaction must involve oxygen as one of the reactant. The grams of water produced by the combustion of 32.0g of CH₄ is 72 g.
What is combustion reaction?The combustion can be defined as a chemical process or reaction between the hydrocarbon and oxygen. When they react together, heat and light energy is released. The burning of wood is an example.
Here the reaction is:
CH₄ +2O₂ → 2H₂O +CO₂
Combustion of one mole of CH₄ gives 2 moles of water (36 g).
Then combustion of 32 g of CH₄ gives:
36 g H₂O/16 g CH₄ × 32 g CH₄ = 72 g water
Thus the grams of water produced is 72 g.
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identify the main reason for adding solvent slowly to a volumetric flask.
The main reason for adding solvent slowly to a volumetric flask is to ensure that the final volume of the solution is accurate and precise.
What is the purpose of using a volumetric flask?Volumetric flasks are designed to contain a specific volume of liquid at a particular temperature and require careful handling to achieve the desired result. By adding solvent slowly and with care, the final volume can be precisely measured and controlled, reducing the risk of error and ensuring that the concentration of the solution is accurate. Additionally, adding solvent slowly helps to minimize the formation of air bubbles, which can affect the final volume of the solution and its accuracy. Overall, adding solvent slowly to a volumetric flask is an important step in achieving accurate and precise measurements in chemical experiments.
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What is prius gas mileage
The Toyota Prius basic trim in 2022 has the highest gas mileage ratings in its class. It states that it gets 56 MPG overall, 58 MPG in the city, and 53 MPG on the highway.
A Toyota Prius's gas mileage varies based on the model year, the road's conditions, and the driver's behaviour. Yet, the Prius is one of the most fuel-efficient cars on the market and is well renowned for its fuel efficiency. The combined city/highway gas mileage for the most current Prius models is expected to be between 54 and 58 miles per gallon. A hybrid powertrain, which combines an electric motor with a gasoline engine, enables the car to run on electricity at low speeds and during acceleration while the gasoline engine supplies power at greater speeds, is what allows for this good gas mileage.
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what is the formal charge of a nitrogen atom that has no lone pairs and forms two double bonds?
Answer:
+1
Explanation:
A nitrogen atom that forms two double bonds and has no lone pairs would have a formal charge of +1.
The formal charge of an atom is calculated by subtracting the number of lone pair electrons and half the number of bonding electrons from the number of valence electrons. In the case of nitrogen, it has five valence electrons. If it forms two double bonds, then it is sharing four electrons with each bond, for a total of 8 electrons. This means that nitrogen has lost 3 electrons compared to the neutral atom, which gives it a formal charge of +1.
what is acetone molar mass?
Acetone, sometimes referred to as propanone, has a molar mass of around 58.08 g/mol.In stoichiometric calculations, the molar mass of a material is also used to convert between mass and moles of a substance.
Molar mass, measured in grammes per mole (g/mol), is the mass of one mole of a material. It is a key idea in chemistry because it makes it possible to connect a substance's mass to the quantity of particles in a sample. The atomic masses of all the atoms in a molecule are added together to determine the molecule's dimensional mass. This value is helpful for a wide range of tasks, like figuring out how much of a material is needed for a chemical reaction or taking accurate measurements in analytical chemistry. In stoichiometric calculations, the molar mass of a material is also used to
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an experimental volume of 21.4 l is determine for 1 mole of gas at stp. what is the experimental error?
The experimental error in this case is 4.46%.
How to determine the experimental error?At STP (Standard Temperature and Pressure), 1 mole of gas occupies a volume of 22.4 liters. Therefore, the experimental error in this case can be calculated as follows:
Experimental error = | (experimental value - theoretical value) / theoretical value | x 100%
= | (21.4 L - 22.4 L) / 22.4 L | x 100%
= 4.46%
This means that the experimental volume of 21.4 L is 4.46% lower than the theoretical value of 22.4 L at STP. This could be due to various factors such as instrumental errors, human errors.
Therefore, the experimental error in this case is 4.46%.
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Hf is a corrosive gas. at 2.0 atm and 300 k, hf occupies a 4.50 l volume. How many grams of Hf are in the volume?
According to the ideal gas equation and mole concept, there is 0.721 grams of HF present in the sample.
What is ideal gas equation?The ideal gas law is a equation which is applicable in a hypothetical state of an ideal gas.It is a combination of Boyle's law, Charle's law,Avogadro's law and Gay-Lussac's law . It is given as, PV=nRT where R= gas constant whose value is 8.314.The law has several limitations.
Substitution in above equation gives n=2×4.50/8.314×300=0.036 which is mass= 0.036×20=0.721 g.
Thus, there is 0.721 grams of HF present in the sample.
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what is sulfur trioxide formula
Sulfur trioxide's chemical name is SO3. That is accurate, indeed. Three oxygen atoms and one sulphur atom make up the chemical compound trioxide, which has the formula SO3. It also goes by the name sulphur
With the chemical formula SO3, sulphur trioxide, sometimes referred to as trioxide, is a highly reactive and corrosive substance. It is a colourless to white crystalline substance that easily transforms into sulfuric acid when exposed to water. Sulfur dioxide and oxygen react in the presence of a catalyst, such as vanadium pentoxide, to form trioxide in an industrial setting. It is employed in the production of sulfuric acid, one of the most significant industrial compounds having several uses across numerous industries. Trioxide is used in a variety of specialised processes, including the creation of synthetic textiles and pigments. Nonetheless, trioxide has to be handled carefully and with the right safety precautions
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Nitrogen dioxide will undergo decomposition reaction according to the following equation. 2NO2(g)
28.04 grams of nitrogen dioxide is used to react at STP how many total liters of gas will be produced? Record your answer
with 2 decimal places.
At STP one mole of a gas contains 22.41 liters. Here, 28.04 g or 0.60 moles of nitrogen dioxide will produce 0.60 moles of nitrogen gas and 1.2 moles of oxygen gas. Hence, total volume of gas produce is 41 liters.
What is STP condition ?STP condition is the condition at which the temperature is 298 K and pressure is 1 atm.
As per the given equation, 2 moles of nitrogen dioxide gives 2 moles of oxygen gas and one mole of nitrogen gas.
molar mass of NO₂ = 46 g/mol
no.of moles in 28.04 g = 28.04/46 = 0.60 moles.
0.60 moles of NO₂ produce 1.2 moles of O₂ and 0.60 moles of N₂.
volume of one mole at STP = 22.41 L.
then volume in 0.60 moles = 0.60 × 22.41 = 13.69 L
volume of 1.2 moles of O₂ = 1.2 × 22.41 = 27.29 L.
Then total volume = 41 L.
Therefore, 28.04 g of NO₂ gas will give a total volume of 41 L of gases.
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The volume occupied by 9×1023 molecules of N2 gas at STP is closest to??A) 1.50 LB) .500 LC) 22.4 LD) 33.6 L
The closest 33.6 L is the volume held by 9.031023 molecules of N2 gas at STP.
Option D is the appropriate response to the query. 33.6 L.
We'll start by figuring out how many molecules of N2 gas there are in 9.031023 moles of N2 gas. This is attainable as follows:
According to Avogadro's theory,
1 mole of N2 is equal to 6.021023 molecules.
Therefore,
9.031023 molecules equals
1.5 mole of N2 = 9.03 x 1023 molecules.
As a result, 1.5 moles of N2 contain 9.031023 molecules.
Next, we will calculate the volume that 1.5 moles of N2 at stp occupy. Below is an example to help:
at normal pressure and temperature (STP),
1 mole of N2 equals 22.4 L
Therefore,
N2 in 1.5 moles is 1.5 22.4.
1.5 moles of N2 equal 33.6 L.
As a result, we may say that 33.6 L is the volume that 9.031023 molecules of N2 gas at STP occupy.
Option D. 33.6 L provides the appropriate response to the query.
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The volume occupied by 9×1023 molecules of N2 gas at STP (Standard Temperature and Pressure) is closest to .500 L.
STP is defined as 0°C (273.15 K) and a pressure of 1 atm (101.325 kPa). At STP, 1 mole of any gas occupies a volume of 22.4 L. Therefore, since there are 6.022×1023 molecules in 1 mole, 9×1023 molecules will occupy a volume of (9/6.022)×22.4 L or .500 L. In comparison, the volume of 1.50 L is too large. This is because 1.50 L is the volume occupied by 1 mole of any gas at STP. Since there are only 9×1023 molecules of N2 gas, the volume occupied would be much less. Similarly, 33.6 L is also too large, because this is the volume occupied by 5 moles of any gas at STP. As 9×1023 molecules of N2 gas is much less than 5 moles, the volume occupied would be much lower.
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How many grams of na2o are required to produce 160 grams of NaOH? Show your work
Na2O+H2O->2NaOH
Answer:
124 grams of Na2O are required to produce 160 grams of NaOH.
Explanation:
The balanced chemical equation is: Na2O + H2O -> 2NaOH
From the equation, we can see that 1 mole of Na2O produces 2 moles of NaOH.
To find the amount of Na2O required to produce 160 grams of NaOH, we need to first calculate the number of moles of NaOH:
Molar mass of NaOH = 23 + 16 + 1 = 40 g/mol
Number of moles of NaOH = mass / molar mass = 160 g / 40 g/mol = 4 moles
Since 1 mole of Na2O produces 2 moles of NaOH, we need half as many moles of Na2O, which is 2 moles.
Finally, we can calculate the mass of Na2O required:
Molar mass of Na2O = 23 + 23 + 16 = 62 g/mol
Mass of Na2O = number of moles * molar mass = 2 moles * 62 g/mol = 124 g
Therefore, 124 grams of Na2O are required to produce 160 grams of NaOH.