Homework Help: Chemistry

Posted by Peter on Tuesday, January 29, 2013 at 8:35pm.

A sample of nitrogen gas is collected over
water at a temperature of 23°C. What is the pressure of the nitrogen gas if the atmospheric pressure is 791 mm Hg?
Answer in units of mm Hg

Chemistry - DrBob222, Tuesday, January 29, 2013 at 10:23pm
Ptotal = pN2 + pH2O
791 = Ptotal
pH2O--look up vapor pressure H2O at 23 C and substitute. Then solve for pN2.

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