From your data, calculate the density of CO2 (g). Calculate the ratio of the density of CO2 (g) to the density of air at the temperature and pressure measured. How does this compare to the ratio of the molar mass of CO2 to the average molar mass of air? (28.8 g/mol) Calculate the volume of a gas sample at T = 35.0 °C and P = 675 torr if the same sample occupied 42.6 L at T = –27.3 °C and P = 1.000 atm.

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.

Describe the process that was used in this lab to create magnesium oxide, specifically identifying the type of chemical reaction. explain why the product had a higher mass than the reactant, and how this relates to conservation of matter.