Solve fast without time wasting

5. Consider the following table of measurements of pressure vs. volume for Oz (Moz = 32 u) in a closed container at 300K. Pressure (kPa) Volume (cm ) 90.9 24.89 73.6 30.72 59.5 37.93 a. Is it reasonable to conclude that the gas obeys Boyle's law? How did you come to this conclusion? Discuss clearly. b. How many molecules are contained in this volume? How do you know? c. If the oxygen molecules are replaced by an equal number of helium gas molecules (Me = 4 u) at the same temperature, what would be the gas pressure when the volume /'= 30.73 cm ? (Hint: See the above table.)