In a container filled with gas at a constant temperature, the volume is 183 mL and the pressure is at 310 mm Hg. The desired new volume is 90.0 mL. What is the required new pressure?
PâVâ = PâVâ - This is the formula that you ue Convert  mmHg to atm first. 310 mmHg x 1 atm/760 mmHg = 0.407 atm = Pâ (0.407 atm)(0.183 L) = (x atm)(0.0900 L) x = 0.826 atm = new pressure. 0.826 atm x 760 atm/1 mmHg = 628 mmHg
