What is the density in grams/ Liter of carbon dioxide in grams per liter at 684 torr and 60° C?

A sample container of carbon monoxide occupies a volume of 422 mL at a pressure of 785 torr and a temperature of 298 K. What would its volume (mL) be if the temperature were changed to 182 K at a pressure of 785 torr?

A mixture of N2, O2, and CO2 has a total pressure of 733 torr. In this mixture the partial pressure of N2 is 11.7 cm Hg and the partial pressure of O2 is 3.89 dm Hg. What is the partial pressure of the CO2 (in torr)? Pco2 = i torr

A sample of dichloroethane, a dry cleaning solvent, is vaporized into a 266.4 mL flask at 99.8 oC. Some of the sample leaves the flask through a pinhole through the stopper until the pressure in the flask is the same as the outside pressure. A barometer shows the pressure to be 745.3 torr. When the flask is cooled, the mass of dichloroethane in the flask if measured to be 0.8447 g. Calculate the formula weight of dichloroethane. The elemental analysis of dichloroethane is 24.27% C, 4.07% H, and 71.65% Cl.. What is the molecular formula of dichloroethane?