1. A sample of Oxygen gas occupies a volume of 250 ml at 0.97 atm pressure. What volume will it occupy at 1.05 atm pressure?

The volume will be 0,23 L

Explanation:

We use Boyle Mariotte's law: for a given mass of gas at constant temperature, the pressure and volume vary inversely proportionally. We convert the unit of volume in ml into L: 250/1000 = 0,250 L

P1xV1=P2xV2

V2 = (P1xV1) / V2 = (0,97 atm x 0,250 L) / 1,05 atm = 0,23 L