How many moles of gas were added to the container

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A gas sample containing 1.45 mol at 25°C exerts a pressure of 397 torr. Some gas is added to the same container, and the temperature is increased to 50.°C. If the pressure increases to 800. torr, how many moles of gas were added to the container? Assume a constant-volume container.

Reference no: EM13164779

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