Asked by Henry

A 200.0 mL flask contains 1.03 mg of O2 and 0.41 mg HE at 288K. Calculate the partial pressure of oxygen and helium in the flask. What is the total pressure?
Answered by DrBob222
I would convert mg O2 to moles (moles = grams/molar mass) and use PV = nRT to solve for pressure. Do the same for He. Add the partial pressures to find the total P.
Answered by Henry
@DrBob222
thanks once again for your generous help :)
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