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You have a mixture of two gasses that has a total pressure of 9.0 atm. One gas has a pressure of
7.9 atm. What is the partial pressure of the other gas?
A. 9.0 atm
B. 16.9 atm
C. 7.9 atm
D. 1.1 atm

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Answer:

D. 1.1 atm

Explanation:

The partial pressure of the other gas can be calculated by subtracting the pressure of the known gas from the total pressure.

Partial pressure of the other gas = Total pressure - Pressure of the known gas

Partial pressure of the other gas = 9.0 atm - 7.9 atm

Partial pressure of the other gas = 1.1 atm

So the answer is 1.1 atm