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A sample of hydrogen gas is collected over water at 25
c. the vapor pressure of water at 25 c is 23.8 mmhg. if the total pressure is 523.8 mmhg, what is the partial pressure of the hydrogen? *

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Dejanras
Answer is: the partial pressure of the hydrogen 500 mmHg.
p(total) = 523.8 mmHg.
p(water) = 23.8 mmHg.
p(total) = m(water) + p(hydrogen).
p(hydrogen) = p(total) - p(water)..
p(hydrogen) = 523.8 mmHg - 23.8 mmHg.
p(hydrogen) = 500 mmHg.
mmHg or millimeter of mercury is a manometric unit of pressure.

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