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Molar Volume and Ideal Gas Law

Molar Volume and Ideal Gas Law. Molar Volume. The volume occupied by one mole of gas under standard conditions (STP or SATP). The molar volume is easy to calculate using the gases measured densities and their molar mass.

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Molar Volume and Ideal Gas Law

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  1. Molar Volume and Ideal Gas Law

  2. Molar Volume • The volume occupied by one mole of gas under standard conditions (STP or SATP). • The molar volume is easy to calculate using the gases measured densities and their molar mass. • For example, the measured density of helium and neon at SATP is 0.192g/L and 0.815g/L respectively.

  3. Molar Volumes • It was found that the volume of one mole of any ideal gas at SATP is approximately 24.8L. • When using STP conditions, it was found that the volume of one mole of any gas is approximately 22.4L. • Densities of gases under standard conditions can easily be determined:

  4. The Ideal Gas Law • So far, we have yet to discuss the most important concept in this class with respect to gases which is…… • How can pressure, temperature, and volume be used find a relationship between the amount of gas (moles) in a sample? • The ideal gas law does this.

  5. For an ideal gas, the product of pressure (kPa) and volume (L) divided by the product of moles and temperature (K) will always give….. • Substituting R into the formula and multiplying both sides by (nT) will give…. This is the universal gas constant!!!

  6. Determining the Molar Mass of an Ideal Gas

  7. Determining Molecular Formula of a Gas

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