A 475 mL sample of gas is collected over water at 27 degrees C and a total pressure of 675 mm Hg. if the vapor pressure of water at 27 degrees C is 26.7 torr. what is the volume of the gas at standard pressure?

Again, in order to learn and understand you need to read about the gas laws in your text book and see how they relate to each other.

This will tell you the equation that you need to use to answer this question.

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