Boyle's Law: the pressure volume law - volume of a given amount of gas held varies inversely with the applied pressure when the temperature and mass are constant.
Boyle's law states that pressure is inversely proportional to volume at constant temperature PV = k where P - pressure , V -volume and k - constant P1V1 = P2V2 where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation P1 - 755 torr x 0.00131 atm/torr = 0.989 atm substituting the values in the equation 0.989 atm x 5.00 L = 1.25 atm x V V = 3.96 L new volume is 3.96 L
