Answer: 1.2 Liters
Step-by-step explanation:
Given that,
Original volume of oxygen V1 = 2.1 L
Original pressure of oxygen P1 = 375 torr
New pressure of oxygen P2 = 663 torr
New volume of oxygen V2 = ?
Since pressure and volume are given while temperature is constant, apply the formula for Boyle's law
P1V1 = P2V2
375 torr x 2.1L = 663 torr x V2
787.5 torr L = 663 torr x V2
V2 = 787.5 torr L / 663 torr
V2 = 1.188L (Round the volume to the nearest tenth as in 1.2L)
Thus, the volume of oxygen is 1.2 liters when the pressure is 663 torr.