Question: A 200.0-mL flask contains 1.03 mg O2 and 0.56 mg He at 15oC. Calculate the partial pressures of oxygen and of helium in the flask.

A 200.0-mL flask contains 1.03 mg O2 and 0.56 mg He at 15oC. Calculate the partial pressures of oxygen and of helium in the flask. What is the total pressure?

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