Three separate samples of an unknown gas were bubbled through water and collected in a closed container of variable volume. The masses of the gas samples were determined by measuring the mass of the flask containing the pure gas before and after each introduction of gas into the water/sealed container apparatus. Given that the atmospheric pressure was 776.5mmHg throughout, and the vapor pressure of water at the experimental temperature was 21.2mmHg, calculate the molecular weight of the unknown gas: Trial 1 Trial 2 Trial 3 Temperature (oC) 24.5 23.8 23.8 Initial Mass 12.4510g 12.3585g 12.2802g Final Mass 12.3585g 12.2802g 12.1708g Volume collected 40.15mL 33.62mL 45.34mL