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A mixture of He, Ar, and Xe has a total pressure of 2.40 atm. The partial pressure of He is 0.300 atm, and the partial pressure of Ar is 0.250 atm. What is the partial pressure of Xe?
Express your answer to three significant figures and include the appropriate units.

Sagot :

1.85 atm

The total pressure is equal to the sum of all of the partial pressures, so 2.40 = 0.300 + 0.250 + pressure of Xe. Solving for the pressure of Xe, you get 1.85 atm.
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