6. Energy generated from
nuclear fusion in the sun's core is what causes
the sun to "shine" and radiate energy through
the solar system. In fusion, four hydrogen
atoms fuse together to become one helium
atom. The atomic mass of hydrogen is 1.00794
and the atomic mass of helium is 4.0026.
How does the difference in the mass of four
hydrogen atoms and one helium atom help
explain the energy released by the sun?

d. calcium and oxygen would not be capable of forming an ionic bond. Ionic bonds form between elements with significantly different electronegativity values, where one element loses an electron and the other gains it.

Elements with similar electronegativity values would not be capable of forming an ionic bond. Option A, phosphorus and chlorine, and option B, barium and nitrogen, have significantly different electronegativity values and are capable of forming ionic bonds. Option C, iodine and sodium, can form an ionic bond since sodium is a metal and iodine is a nonmetal. Option D, calcium and oxygen, cannot form an ionic bond since both elements have similar electronegativity values and prefer to form covalent bonds.

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Complete question:

Which two elements would NOT be capable of forming an ionic

bond?

a phosphorus and chlorine

b barium and nitrogen

c iodine and sodium

d. calcium and oxyge​n

In physics, a non-reaction force, also known as an action-at-a-distance force, is a force that acts on an object without direct contact. Non-reaction forces are types of external forces, which are forces that act on an object from outside of the object.

Examples of non-reaction forces include gravitational forces, electric forces, and magnetic forces. These forces act on objects from a distance, without any direct contact between the objects. For example, the force of gravity that keeps planets in orbit around the sun is a non-reaction force.

One of the key characteristics of non-reaction forces is that they are not affected by the motion or velocity of the object they are acting upon. In other words, non-reaction forces act independently of the motion or position of the object they are acting on.

Non-reaction forces are important in many areas of physics, including classical mechanics, electromagnetism, and quantum mechanics. They play a crucial role in our understanding of the behavior of objects and the natural world around us.

It is important to note that non-reaction forces can also be balanced or unbalanced, just like reaction forces. If the non-reaction forces acting on an object are balanced, then the object will remain in a state of rest or continue to move at a constant velocity. If the non-reaction forces are unbalanced, then the object will experience acceleration and its motion will change.

In summary, non-reaction forces are types of external forces that act on an object from a distance, without any direct contact. They include gravitational, electric, and magnetic forces, and are not affected by the motion or velocity of the object they are acting on. Non-reaction forces play a crucial role in our understanding of the behavior of objects and the natural world around us.

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Freezing temperature is the temperature at which a liquid turns into a solid. For different liquids or substances the freezing temperature will be different.

In the case of water the freezing point is 0° Celsius. When you convert the 0° Celsius into Fahrenheit, it is 32° Fahrenheit.

At this temperature the water will turn into ice. But we have consider this also that the freezing temperature of other substances can be different.

When we consider other liquids or substances, we can see for example ethanol (alcohol) have the freezing temperature of -114° Celsius (-173° Fahrenheit). Freezing temperature of mercury is -38° Celsius (-37° Fahrenheit).

To convert from Celsius to Fahrenheit,

C = 5/9 (F - 32)

F = (9/5 × C) + 32

C ⇒ Temperature in Celsius.

F ⇒ Temperature in Fahrenheit.

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Answers for parts D, E and F are (D) Mass of oleic acid in one drop =1.036 x 10⁻⁶ g/drop. (E)  1.157 x 10⁻⁶mL/drop (F) Volume of monolayer = 9.632 x 10⁻⁶ mL.

Part D) To calculate the mass of oleic acid in one drop, we first need to calculate the mass of oleic acid in one mL of the solution.

Concentration of oleic acid/benzene solution = 0.02 g/L

Therefore, 1 L of solution contains 0.02 g of oleic acid.

As 1 L = 1000 mL, 1 mL of solution contains 0.02/1000 = 0.00002 g of oleic acid.

We know that 1 mL of benzene contains 19.3 drops, so the mass of oleic acid in one drop of the solution can be calculated as:

Mass of oleic acid in one drop = (0.00002 g/mL) / (19.3 drops/mL)

= 1.036 x 10⁻⁶ g/drop

Part E) The density of oleic acid is given as 0.895 g/mL. To calculate the volume of one drop, we need to know the mass of one drop of oleic acid. We can use the mass of oleic acid in one drop calculated in Part D to find the volume of one drop.

Mass of one drop of oleic acid = 1.036 x 10⁻⁶ g/drop

Volume of one drop = (Mass of one drop of oleic acid) / (Density of oleic acid)

= (1.036 x 10⁻⁶ g) / (0.895 g/mL)

= 1.157 x 10⁻⁶ mL/drop

Part F) The number of drops used to form a monolayer is given as 8.33 drops. Using the volume of one drop calculated in Part E, we can find the volume of the monolayer.

Volume of monolayer = (Number of drops used) x (Volume of one drop)

= (8.33 drops) x (1.157 x 10⁻⁶ mL/drop)

= 9.632 x 10⁻⁶ mL

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The HBr lewis structure is as follows :

       . .

 H - Br :

       °°

In lewis structure of the HBr, the molecule is the diatomic molecule and is containing the only two atoms H and the Br that are linked with the each other with the single covalent bond in the straight line. The H atom will shared its one electron with the Br atom and will form the single covalent bond forming the straight line of the structure and therefore the HBr is a linear molecule.

The lewis structure of the HBr is as follows :

       . .

 H - Br :

       °°

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Tiana is developing a chemical additive to be used in swimming pools.

Chemical additives are substances added to products to alter or improve their performance. They are used in a wide range of consumer products and industrial processes for a variety of purposes including improving shelf-life, enhancing flavor, or increasing the efficiency of a process. Common examples of chemical additives are preservatives, colorants, emulsifiers, antioxidants, stabilizers, and thickeners.

This additive is designed to help keep the pool clean and sanitary, by removing bacteria and other contaminants from the water. The additive is also designed to help balance the pH of the pool water, to ensure that it is safe for swimming and does not irritate swimmers' skin or eyes. The chemical additive must also be safe to use, and must not cause any adverse reactions in swimmers. Tiana's work involves testing different chemical compounds to find the most effective and safe additive for pool water.

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Answer:

C12 H22 O11

Explanation:

Answer:

it's describe the atom because the other name for it is atom

The equation for the dissociation of the weak acid HBrO[tex]_4[/tex] in water is HBrO[tex]_4[/tex] + H[tex]_2[/tex]O [tex]\rightarrow[/tex] BrO[tex]_4[/tex]⁻. Perbromate salts are created when it interacts with bases.

The inorganic substance with the equation HBrO[tex]_4[/tex] is perbromic acid. It is a bromine oxoacid. Unlike periodic acid, which is manufactured by displacing chlorine with perchloric acid, perbromic acid highly unstable and can only be created by protonating the perbromate ion.

Very oxidizing and an acid, perbromic acid is. It is the halogen(VII) oxoacid that is most unstable. When exposed to air and bromic acid, it breaks down quickly. Perbromate salts are created when it interacts with bases.

HBrO[tex]_4[/tex] + H[tex]_2[/tex]O [tex]\rightarrow[/tex] BrO[tex]_4[/tex]⁻

Therefore, the equation for the dissociation of the weak acid HBrO[tex]_4[/tex] in water is HBrO[tex]_4[/tex] + H[tex]_2[/tex]O [tex]\rightarrow[/tex] BrO[tex]_4[/tex]⁻.

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Answer: It is a strong acid

Explanation: The definition for a strong acid is where it ionise almost completely in water

For this instance: H+ ions and Cl- ions It has a large proportion of acid molecules dissociate to release H+ ions. Also they tend to have a low pH (0-2)

The two types of nucleophilic substitution reactions are SN1 and SN2. SN2 has two molecules, whereas SN1 only has one.

A nucleophilic molecule replaces a different atom or group of atoms on a molecule, known as the leaving group, in a nucleophilic substitution reaction. The substrate molecule is attacked by the nucleophilic molecule's abundant electrons.

A process in which one functional group or atom is swapped out for another negatively charged functional group or atom is known as a nucleophilic substitution reaction.

The SN1 reaction is monomolecular, whereas the SN2 reaction is bimolecular.

Any substitution reaction in which an atom or functional group is changed for one that has a single pair of electrons, a negatively charged ion, or both. The negatively charged ion or the atoms/molecules with lone pairs of electrons will be pulled to the positively charged area of an atom or complex in an effort to replace the functional group or atom already attached to the positive location.

Therefore, The two types of nucleophilic substitution reactions are SN1 and SN2. SN2 has two molecules, whereas SN1 only has one.

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pH scale measures whether the aqueous solution is acidic or basic. It is a measure of concentration of hydronium ion.

The term acidity and alkalinity are measured with a logarithmic scale called pH scale. pH is a measure of how acidic or basic the water is. It is a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions are measured to have lower pH values than basic solutions or alkaline solutions.  The objects that are not very acidic are called basic objects. The pH scale has values ranging from zero that is the most acidic to 14  that is the most basic. Pure water has a pH value of 7. This value of 7 is considered as neutral that is neither acidic or basic.

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You must keep in mind the ideal gas rule law that PV = NRT, which has a pleasant sound to it.

Several scientists created the gas laws at the close of the 18th century (after whom, the individual laws are named). There are five gas laws:

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A reaction in which a compound decomposes into two or more elements or new compounds is called a decomposition reaction.

A compound is a chemical substance composed of many identical molecules containing atoms of one or more chemical elements held together by chemical bonds. Therefore, a molecule composed of only atoms of one element is not a compound.

General decomposition equation:

AB → A + B

where AB represents the compound being decomposed and A and B are the products of the reaction. For example, the decomposition of water (H2O) can be expressed as:

2H2O → 2H2 + O2

In this reaction, water splits into hydrogen gas (H2) and oxygen gas (O2).

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Remove some oxygen so that we can have more of the sulfur dioxide in the system that have been shown below.

We can see that the reaction that we have here is an endothermic reaction since the heat has been written on the reactant side thus we would have to add some that so that we can drive the forward reaction.

In this case, when we look at the reaction that has been written as;4558 kJ+2SO 3 (g) -----> 2SO2 (g) + O2 (g). We can see that if we remove some of the oxygen then we will have more SO2.

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Missing parts;

Which method could you use to

encourage more product, SO2, to form

from the reaction below?

4558 kJ+2SO 3 (g)2S*O_{2}(g) + O{2}(g)

Cool the system

Decrease the volume of the container

Remove SO3

Remove O2

Anaerobic or non-oxidative energy system. The non-oxidative power system does not need oxygen to produce ATP, as the name suggests.

What does the word "anaerobic" mean in medicine?

Anaerobic is defined in medicine. When intense activity, anaerobic respiration takes place, pyruvic acid serves as a proton donor, and anaerobic bacteria cause lactic acid to build up in the tissues. 1a: alive, active, or happening in the lack of free oxygen

What advantages do anaerobic exercises have?

All people should engage in aerobic exercise to improve their overall health, strengthen their muscles, and reduce their risk of inflammation. Make sure you get off to a sluggish start. Increase the frequency, and duration gradually to give your body time to adjust to the new pace and avoid becoming hurt.

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All volumetric flasks are calibrated. The main reason for adding the solvent slowly to a volumetric flask is that the liquid does not exceed the volume marking on the flask. The correct option is D.

A Volumetric flask also called the measuring flask is a laboratory apparatus which is used to hold accurate amount of volume at the specific temperature. It is mainly used to store and prepare the solutions for laboratory purposes.

The solvent should be added slowly to the flask. If too much solvent is added then the volume get disrupted and a new solution has to be prepared from the first step.

Thus the correct option is D.

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The region marked as P in DNA cell is showing the hydrogen bonding of R-groups. Option c is the correct answer.

Hydrogen bonding can occur between R-groups (also known as side chains) of certain amino acids in a protein. Hydrogen bonds are weak chemical bonds that form between a hydrogen atom and an electronegative atom such as oxygen or nitrogen. In proteins, hydrogen bonding between R-groups can help to stabilize the protein's three-dimensional structure, which is important for its function.

For example, the R-group of the amino acid serine (-CH₂OH) contains a hydroxyl (-OH) group that can participate in hydrogen bonding. Similarly, the R-group of the amino acid threonine (-CH(OH)CH₃) contains both a hydroxyl group and a methyl (-CH₃) group that can participate in hydrogen bonding. Hence, option c is correct choice.

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--The complete question is, Refer to Exhibit 4B. Which one shows hydrogen bonding of R-groups?
a. M
b. N
c. P
d. M
N e. All of these--

The amount of the solute a in water is 4.17 g in water and 4.79 g in ether layer. Then the distribution  constant Kd is the ratio of the concentration of the solute in ether to that in water layer 1.16.

The Distribution coefficient Kd of a solute in a mixture of solutions is the ratio of its concentration in the upper layer to that in the lower layer of the mixture. This inequality in solute distribution arises from the immiscibility of the two solvents.

Let x1 be the concentration in v1 L of water layer and x2 be the concentration in v2 L of organic layer. Then ,

Kd = x1/v1 × v2/x2

Given the total amount of solute dissolved = 8.96 g

volume of both water and ether used  = 60 ml.

amount recovered in ether layer = 4.79 g

then amount present in water layer = 8.60 - 4.79 = 4.17 g.

Then distribution constant Kd = 4.79/60 × 60/4.17 = 1.16.

Therefore, the Kd value of the compound in ether/water system is 1.16.

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To make up the 275 ml of a 4.6 M solution of the HCl we need 45.93 g of the HCl.

The molarity of the HCl solution = 4.6 M

The volume of the HCl solution = 275 mL

The molarity is expressed as :

Molarity = moles / volume in L

Moles = molarity × volume

Moles = 4.6 × 0.275

Moles = 1.26 mol

The number of the moles is as :

Number of the moles = mass / molar mass

Where

The molar mass = 36.46 g/mol

Mass = number of moles × molar mass

Mass =  1.26 × 36.46

Mass = 45.93 g

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Disaccharides consist of (a) 2 molecules of sugar joined together.

A disaccharide is a type of carbohydrate molecule made up of two monosaccharide (simple sugar) molecules joined together by a glycosidic bond. Common examples of disaccharides include sucrose (table sugar), which is made up of glucose and fructose molecules, and lactose (milk sugar), which is made up of glucose and galactose molecules. Other examples of disaccharides include maltose, which is made up of two glucose molecules, and trehalose, which is made up of glucose molecules in a unique alpha, alpha-1,1 linkage. Disaccharides are broken down by enzymes in the digestive system into their individual monosaccharide units for absorption into the body.

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Energy is taken in by a system from its surroundings during endothermic reactions. In a chemical equation or reaction, this means that the products will have more energy than the reactants.

Exothermic means that the chemical reaction releases energy. In exothermic reactions, bonds are broken in the reactants, but more energy is expended when the bonds are broken in the products. Endothermic chemical processes are those that take in energy.

Reactions that are endothermic are the reverse of those that are exothermic. Their surroundings heat them up, which they absorb. Therefore, endothermic reactions result in a cooler environment around them. This sort of interaction is demonstrated by the melting of ice.

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The working of biological macromolecules is influenced by their three-dimensional structure. Proteins and nucleic acids' cellular functions are a result of their three-dimensional shapes.

Biological macromolecules are the large molecules needed for living that are constructed from smaller organic molecules. The four main groups of biological macromolecules are lipids, proteins, nucleic acids, and carbohydrates. These molecules make up most of a cell's bulk when they are all combined. Since they contain carbon, biological components are considered organic. They could also include small amounts of hydrogen, oxygen, nitrogen, phosphorus, sulphur, and other elements.

Large molecules known as biological macromolecules are created by polymerizing smaller molecules known as monomers.

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a) The volume of a hydrogen atom in cubic picometers is approximately 0.704 * 10^-27 pm^3.

b) The volume of a hydrogen atom in cubic nanometers is approximately 0.704 * 10^-27 nm^3.

c) The volume of a hydrogen atom in cubic angstroms is approximately 0.704 Å^3.

What do you mean by hydrogen?

Hydrogen is the chemical element with the symbol H and atomic number 1. It is the most abundant element in the universe, making up about 75% of its elemental mass. Hydrogen is a colorless, odorless, and tasteless gas, and it is the lightest element in the periodic table.

Hydrogen has a number of important industrial applications, including use in the production of ammonia, methanol, and other chemicals. It is also used as a fuel for rockets and other forms of transportation, and is being explored as a potential energy source for powering vehicles and homes. In its liquid and solid forms, hydrogen is used as a coolant in nuclear reactors.

The volume of a hydrogen atom can be calculated using the formula for the volume of a sphere:

V = (4/3) * π * r^3

where r is the radius of the hydrogen atom.

The radius of a hydrogen atom is approximately 0.53 angstroms, so we can substitute this value into the formula and calculate the volume in each unit:

(a) cubic picometers:

1 pm = 10^-3 angstroms

V = (4/3) * π * (0.53 angstroms)^3 = 0.704 cubic angstroms

V in pm^3 = 0.704 * (10^-3 angstroms/pm)^3 = 0.704 * 10^-27 pm^3

Therefore, the volume of a hydrogen atom in cubic picometers is approximately 0.704 * 10^-27 pm^3.

(b) cubic nanometers:

1 nm = 10 angstroms

V = (4/3) * π * (0.53 angstroms)^3 = 0.704 cubic angstroms

V in nm^3 = 0.704 * (10 nm/angstroms)^3 = 0.704 * 10^-27 nm^3

Therefore, the volume of a hydrogen atom in cubic nanometers is approximately 0.704 * 10^-27 nm^3.

(c) cubic angstroms:

V = (4/3) * π * (0.53 angstroms)^3 = 0.704 cubic angstroms

Therefore, the volume of a hydrogen atom in cubic angstroms is approximately 0.704 Å^3.

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Liquid fats, such as vegetable oils, typically come from plant sources that are high in unsaturated fats, including both monounsaturated and polyunsaturated fats.

Monounsaturated and polyunsaturated fats are types of unsaturated fats.

Monounsaturated fats are a type of fat that is typically liquid at room temperature and becomes solid when chilled. They are found in high amounts in foods such as olive oil, avocado, nuts, and seeds. Consuming monounsaturated fats in place of saturated fats can help improve blood cholesterol levels and reduce the risk of heart disease.

Polyunsaturated fats are another type of unsaturated fat. They are typically liquid at room temperature and also when chilled. Polyunsaturated fats are found in high amounts in foods such as vegetable oils, fatty fish, nuts, and seeds. Two types of polyunsaturated fats that are especially beneficial for health are omega-3 and omega-6 fatty acids. Omega-3 fatty acids are found in fatty fish, such as salmon and sardines, as well as in flaxseed and chia seeds. Omega-6 fatty acids are found in vegetable oils, such as corn, soybean, and sunflower oils. Consuming a balance of omega-3 and omega-6 fatty acids can help improve heart health and reduce inflammation.

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The mass of the glycerin, C₃H₈O₃ a nonelectrolyte, that must be dissolved in 200.0 g water to give a solution with the  freezing point of -1.50 °C is 14.8 g.

Mass of solvent = 200.0 g

Depression at freezing point = - 1.50 °C

Kf = 1.86 °C / m

The molality is given as :

0 - ΔT = Kf × m × i

Where ,

ΔT = - 1.50 °C

Kf =  1.86 °C / m

m = molality = ?

i = 1

m = 1.50 / 1.86

m = 0.806 m

The molality = ( mass of solute × 1000) / ( molar mass of solute × mass of solvent)

Mass of solute =( 0.806 ×  92 × 200 ) / 1000

Mass of the solute = 14.8 g

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No, not all molecular structures have at least one imaginary frequency. It depends on the specific geometry and symmetry of the molecule.

In general, molecular structures with three or more atoms will have one or more imaginary frequencies.This is because these structures have multiple vibrational modes, and not all of these modes correspond to physical vibrations of the molecule. Instead, some modes involve a distortion of the molecular geometry that is energetically unfavorable or impossible. These modes are represented by imaginary frequencies in the calculated vibrational spectrum of the molecule. However, some simple diatomic molecules, such as HCl or N₂, may not have any imaginary frequencies due to their limited vibrational modes.

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The major organic product for the given two step reaction is lithium diisopropyl amide (LDA).

The chemical molecule known as lithium diisopropyl amide, or LDA for short, has the molecular formula LiN(CH(CH₃)₂)₂. Due to its non-nucleophilic character as well as excellent solubility in non-polar organic solvents, it is a strong base that is frequently used. It is a colorless solid which is often only produced and seen in the solutions.

LDA is strongly polar yet, like the majority of organolithium reagents, is not a salt. In solution, it aggregates, to varying degrees depending on the solvent's properties. Its structure in THF is essentially that of a dimer that has been solvated. While LDA in its solid form is pyrophoric, its solutions are typically not. As a result, it is readily accessible in the market as a solution in polar aprotic solvents like THF and ether; but, for small-scale applications (less than 50 mmol), it is more usual and financially advantageous to manufacture LDA in situ.

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The solvents that are commonly chloroform-d used to prepare a sample for 'H NMR.

The correct option is D.

Chloroform is a solution, or a substance that helps dissolve other substances. Along with the building, paper, and board sectors, it is also used in the production of insecticides and films. It functions as a solvent for rubber, floor polish, resins, adhesives, opiates, fats, and oils.

Chloroform was occasionally used as a drug or in attempts. Chloroform may exert its effects by speeding up the potassium ion flow through certain potassium channels found in nerve cells.

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Therefore, the new volume of the nitrous oxide is 1.64 L when the pressure changes from 1.25 atm to 1.91 atm and the temperature remains constant.

Volume is the amount of space that a substance or an object occupies. It is a physical property of matter that can be measured in cubic units. The volume of a substance can be determined by measuring its dimensions, such as length, width, and height, and then multiplying these values together. In the case of a gas, the volume is the amount of space that the gas occupies in a container. The volume of a gas can be affected by changes in pressure and temperature, as described by the ideal gas law. In this case, the volume is often expressed in terms of standard temperature and pressure (STP), which are defined as a temperature of 0°C and a pressure of 1 atmosphere (atm).

Here,

To solve this problem, we can use Boyle's Law, which states that the pressure and volume of a gas are inversely proportional when the temperature is constant. Mathematically, this can be expressed as:

P₁V₁ = P₂V₂

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

We are given that the pressure changes from 1.25 atm to 1.91 atm, and the initial volume is 2.50 L. To find the final volume, we can use Boyle's Law and solve for V₂:

P₁V₁ = P₂V₂

(1.25 atm)(2.50 L) = (1.91 atm)(V2)

V₂= (1.25 atm)(2.50 L) / (1.91 atm)

V₂= 1.64 L

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