In an experiment a mixture of oxygen and nitrogen gas is collected over water at 30'c and 700 torr pressure. What is the partial pressure of oxygen, if the partial pressure of nitrogen is 550 torr? (Vapour pressure of water at 30'c,4.2455kpa)

Answer 1

I would convert 4.255 kPa to torr first. Then
Ptotal = pO2 + pN2 + pH2O
Substitute and solve for pO2.

Answer 2

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