Chemistry

Problem

A sealed 10.0 L vessel at 300 K contains 0.30 mol He(g) and 0.60 mol Ar(g). The total pressure inside the vessel is 3.0 atm. Which of the following is the partial pressure of Ar(g) in the mixture? a)

1.5\ \text{atm}

1.0\ \text{atm}

2.0\ \text{atm}

1.8\ \text{atm}

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