The document discusses key concepts relating to gases: 1) The ideal gas law (PV=nRT) relates pressure, volume, amount of gas, temperature using the gas constant R. 2) Gases diffuse from areas of higher to lower concentration until uniformly mixed. 3) Dalton's law of partial pressures states that in a gas mixture, each gas exerts pressure as if alone, and total pressure equals sums of partial pressures. 4) Ratios of gas volumes correspond to mole ratios in chemical equations based on Avogadro's law.

1. Putting it all together… Chapter 12 section 3 Slides 1-5 = Ideal Gas Law

4. Ideal Gas Law Sample Problem How many moles of gas are contained in 22.41 liters at 101.325 kPa and 0°C?

5. 1.00 mol Ideal Gas Law Sample Problem Solution V = 22.41 L T = 0°C P = 101.325 kPa n = ? 0°C + 273 = 273 K PV = nRT