11.6-11.7 Tro's Introductory Chemistry, Chapter 11

The Combined Gas Law Boyle’s law shows the relationship between pressure and volume. At constant temperature. Charles’s law shows the relationship between volume and absolute temperature. At constant pressure. The two laws can be combined together to give a law that predicts what happens to the volume of a sample of gas when both the pressure and temperature change. As long as the amount of gas stays constant.

A Sample of Gas Has an Initial Volume of 158 mL at a Pressure of 735 mmHg and a Temperature of 34 °C. If the Gas Is Compressed to 108 mL and Heated to 85 °C, What Is the Final Pressure?

A Gas Occupies 10. 0 L When Its Pressure Is 3 A Gas Occupies 10.0 L When Its Pressure Is 3.00 atm and Temperature Is 27 °C. What Volume Will the Gas Occupy Under Standard Conditions? Tro's Introductory Chemistry, Chapter 11

Avogadro’s Law Volume is directly proportional to the number of gas molecules. V = constant x n. Constant P and T. More gas molecules = larger volume. Count number of gas molecules by moles, n. Equal volumes of gases contain equal numbers of molecules. The gas doesn’t matter. Tro's Introductory Chemistry, Chapter 11

Avogadro’s Law, Continued Tro's Introductory Chemistry, Chapter 11

A 0. 22 Mol Sample of He Has a Volume of 4. 8 L A 0.22 Mol Sample of He Has a Volume of 4.8 L. How Many Moles Must Be Added to Give 6.4 L?

If 1. 00 Mole of a Gas Occupies 22. 4 L at STP, What Volume Would 0 If 1.00 Mole of a Gas Occupies 22.4 L at STP, What Volume Would 0.750 Moles Occupy? Tro's Introductory Chemistry, Chapter 11