Question
A 1-L flask is filled with 1.25g of argon at 25 ∘C. A sample of ethane vapor is added to the same flask until the total pressure is 1.35atm .
What is the partial pressure of argon, PAr, in the flask?
What is the partial pressure of ethane, Pethane, in the flask?
What is the partial pressure of argon, PAr, in the flask?
What is the partial pressure of ethane, Pethane, in the flask?
Answers
Use PV = nRT and solve for pAr. n = grams Ar/atomic mass Ar.
Then Ptotal = 1.35 atm = pAr + pethane
Then Ptotal = 1.35 atm = pAr + pethane
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