Question

A sample of oxygen is collected over water at a total pressure of 592.2 mmHg at 27C. The vapor pressure of water at 27C is 26.7 mmHg. What is the partial pressure of O2?

***Please show steps
Dalton's Law of partial pressure tells us that Ptotal = pO2 + pH2O.
How do you find pressure in this case ?
Read the problem.
Ptotal = 592.2 mm
pO2 = 26.7 mm
You're making this a lot harder than it is.
592.2 = 26.7 + pO2
pO2 = 592.2-26.7 = ?

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