Question

A 500. mL sample of hydrogen gas is collected over water at 27 °C. The pressure of the hydrogen and water vapor mixture is 78.5 kPa and the vapor pressure of water at 27 °C is 3.6 kPa. What is the partial pressure of the dry hydrogen gas?
Ptotal = pH2dry + pH2O
You know Ptotal and pH2O, solve for pH2 dry.
Khud Marlo yaar

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