Ideal Gas Law

AP Chemistry· difficulty 3/5

Three gases occupy a single 10.0 L container at 300 K.

Gas moles N₂ 0.20 O₂ 0.10 Ar 0.05

What is the total pressure (in atm)?

  • A

    0.246 atm

  • B

    0.862 atm

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  • C

    0.493 atm

  • D

    8.62 atm

Explanation

n_total = 0.35 mol. P = nRT/V = (0.35)(0.0821)(300)/10.0 = 0.862 atm.

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