# How do you determine the mass and volume of a gas mass?

How else but by measurement?

Therefore, you clearly access the mass of the gas...and also its peculiar density...by emptying a container of KNOWN volume, recording the so-called tare mass, or the mass of the container, and then filling it with gas and recording the mass of the full container.

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The mass of a gas can be determined by weighing the container holding the gas before and after the gas is added. The difference in mass corresponds to the mass of the gas. The volume of a gas can be measured using various techniques such as displacement of water or using a graduated cylinder or burette.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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- Calculate the number of collisions per second of one hydrogen molecule at 24 °C and 2.00 bar. The diameter of a hydrogen molecule is 270 pm?
- A cylinder with a moving piston expands from an initial volume of 0.250 L against an external pressure of 2.00 atm. The expansion does 288 J of work on the surroundings. What is the final volume of the cylinder?

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