A 1.00 L flask is filled with 1.00g of argon at 25C.?

A 1.00 L flask is filled with 1.00g of argon at 25 ?C. A sample of ethane vapor is added to the same flask until the total pressure is 1.250atm .

Part A
What is the partial pressure of argon, PAr, in the flask?
Express your answer to three significant figures and include the appropriate units.
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PART B
What is the partial pressure of ethane, Pethane, in the flask?
Express your answer to three significant figures and include the appropriate UNITS.
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Answer:

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