Khan Academy on a Stick
Ideal gas laws

Ideal Gas Equation: PV=nRT
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Intuition behind the ideal gas equation: PV=nRT.

Ideal Gas Equation Example 1
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Figuring out the number of moles of gas we have using the ideal gas equation: PV=nRT.

Ideal Gas Equation Example 2
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PV/T is a constant. Figuring out the volume of an ideal gas at standard temperature and pressure (STP).

Ideal Gas Equation Example 3
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Figuring out the mass of Oxygen we have.

Ideal Gas Equation Example 4
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Figuring out the molar mass of a mystery molecule at STP.

Partial Pressure
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Figuring out the partial pressures of various gases in a container.

Vapor Pressure Example
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Vapor pressure example using the Ideal Gas Law