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Ethylene, C2H4, will react with hydrogen gas under appropriate conditions to form ethane, C2H6. A 10.0-liter vessel is charged with 1.5 atm of hydrogen and 1.0 atm of ethylene at 25°C. The reaction is allowed to proceed to completion. Determine the total pressure in the vessel at 25° at the completion of the reaction.

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This question is simply a limiting reagent question, since pressure is directly proportional to moles when all other (temp, volume) conditions are held constant.

C2H4 + H2 --> C2H6
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