Two flasks were each filled with a gas and isolated from each other by a valve. Gas A, in flask 1, had these properties: Pressure: 4 atm Volume: 3L Gas B, in flask 2, had these properties: Pressure: 5 atm Volume: 3L The flasks were maintained at a temperature of 66C at all times. When the valves were opened and the gases allowed to mix, the following reaction occurred: 1A(g) + 1B(g) --> 30(g) What was the total pressure inside the flask after the reaction had occurred? Give your answer in atm, and to at least 4 significant figures