1.09 L of a gas at standard temperature and pressure is compressed to 374 ml. what is the new pressure of the gas?

Answers

Answer 1

Answer: This can be solved using the equation PV = nRT, but there is an easier way using Boyle's Law. This law states that the product of pressure and volume are constant in a system with constant temperature. This means that we can set the product of initial pressure and volume equal to the final pressure and volume. Maybe you have seen this equation as P1V1 = P2V2. We know that temperature is constant at 0 degrees Celsius (or 273.15 K), and that the initial pressure is standard at 1 atmosphere (atm). This means our knowns are:
P1 = 1 atm V1 = 1.09 L V2 = 0.374 L (from 374 mL)
Plug these into the Boyle's Law equation P1V1 = P2V2:
(1 atm)*(1.09 L) = (P2) * (0.374 L)
(1 atm)*(1.09 L)/(0.374 L) = P2
P2 = 2.91 atm

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What is the name of the ionic compound that contains a NA+ ion for every Cl- ion

Answers

The name is sodium chloride. This is an ionic compound so you use the ionic naming system which is the name of the cation followed by the name of the anion. I hope this helps. Let me know if anything is unclear.

A solution of h2so4(aq) with a molal concentration of 6.80 has a density of 1.318 g/ml. what is the molar concentration of this solution?

Answers

The molalconcentration of the solution is 5.38 M.

The molal concentration of sulphuric acid = 6.80 m

The density of the solution = 1.318 g/ml

Mass of the sulphuric acid in the solution is,

$= 6.80 * 9.80$

$=666.4 \: g$

The mass of sulphuric acid present in the solution is 666.4 g.

Let the mass of the solvent in which sulphuric acid is dissolved be 1000 grams.

So the total mass of the solution is,

= Mass of solvent + Mass of sulphuric acid

$= 666.4 \: + \: 1000$

$= 1666.4 \: g$

The total volume of the solution is,

$= (1666.4 * 1)/(1.318 * 1000)$

$= 1.264 \: L$

The volume of the solution is 1.264 liters.

The molal concentration of this solution is,

$= (6.80)/(1.264)$

$= 5.38 \: M$

Therefore, the molal concentration of the solution is 5.38 M.

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A 25°C sample of gas has a volume of 5.0 L. What will it’s volume be if it is heated to 50.0°C?

Answers

The volume of the gas will be 0.8385 when heated to 50.0°C

Compare the arrangements of individual particles in solids, liquids, and gases

Answers

In a gas, the particles are evenly spaced out and not in any particular order. There is no regular arrangement of liquid next to one another. Solids are regularly arranged and closely packed.

What are solids, liquids, and gases?

They can be compressed a lot (particles are widely spaced). Matter exists in three different states: solid, liquid, and gas.

By examining the configuration of their particles, it is possible to understand why they have various qualities.

A solid is a condition of matter that, even when unconstrained, keeps its shape and density.

A liquid is a nearly incompressible fluid with a (almost) constant volume regardless of pressure that adapts to the shape of its container.

A sample of matter that assumes the shape of the container it is stored in and develops a consistent density inside the container is referred to as a gas.

Therefore, the arrangements of individual particles in solids, liquids, and gases is different.

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Solids - particles are very close together (highest density on the list)
Liquids - the particles slide past one another
Gases - particles bounce off of surroundings and the same particles of the gas

select all the correct answers. Which conditions are required for nuclear fusion to begin? The gas cloud must be very dense. Gravitational attraction must stop. Atoms must be stripped of their electrons. Helium atoms must break down into hydrogen. Temperatures must exceed 14 million Kelvin.

Answers

Nuclear fusion is the process in which atomic nuclei come together to form heavier nuclei, releasing large amounts of energy in the process. The correct statements are The gas cloud must be very dense, Atoms must be stripped of their electrons, and Temperatures must exceed 14 million Kelvin.

For fusion to occur, certain conditions must be met. The gas cloud or plasma must be dense enough to allow for a sufficient number of collisions between atomic nuclei. Gravitational attraction, on the other hand, is necessary to bring the atomic nuclei close enough together for the strong nuclear force to overcome the electrostatic repulsion between positively charged nuclei.

Atoms must be stripped of their electrons because, in a plasma state, the atoms are ionized, meaning they have lost or gained electrons and exist as charged particles.

Hence, the correct statements are The gas cloud must be very dense, Atoms must be stripped of their electrons, and Temperatures must exceed 14 million Kelvin.

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Answer:

The gas cloud must be very dense.Temperatures must exceed 14 million Kelvin

If 200.0 g of copper(II) sulfate react with an excess of zinc metal, what is the theoretical yield of copper?