You take stoichiometric amounts of 2-heptene, C7H14, and oxygen in a sealed 1.500 L flask and allow them to react. The reaction goes to completion. The pressure in the flask after the reaction is measured and found to be 28.476861 atm at 297.15 K. The vapor pressure of water at this temp is 22.4 torr. How many grams of each product were formed and how many grams of 2-heptene and oxygen did you start? R= 0.0820578 L*atm/K*mol.