gas laws problems

Question

1. a sample of hydrogen has a volume of 60.0 L a a pressure of 730 mmHg what will the volume be a 760 mmHg?
2. a sample of chlorine has a volume of 654 mL at a prressure of 810 mmHg. what will the volume be a standard pressure ?
3. a sample of oxygen has a volume of 600 mL at a pressure of 14.7 pounds per square inch what pressure would be needed to change the volume of 555mL?
4. a sample of gas has a volume of 2.18 L at a pressure of 800 mmHG. what will the volume be at standard pressure?

Answer 1

1.) V1 = 60.0 L

P1 = 730 mm Hg

P2 = 760 mm Hg

V2 = ?

This is Boyle's Law (constant temperature), so use P1V1 = P2 V2 and solve for V2

2.) V1 = 654 ml

P1 = 810 mm Hg

V2 = ?

P2 = 760 mm Hg (standard pressure). Same as question 1, Boyles Law and use P1V1 = P2V2

3.) V1 = 600 ml

P1 = 14.7 psi

V2 = 555 ml

P2 = ?

Again, use P1V1 = P2V2 and solve for P2. The answer will be in psi

4.) V1 = 2.18 L

P1 = 800 mm Hg

V2 = ?

P2 = 760 mm Hg (standard pressure). Same as the others. Plug in the values and solve for P2 in mm Hg