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Chapter 8: Q. 8.55 (page 278)

In a gas mixture, the partial pressures are nitrogen 425Torr, oxygen 115Torr, and helium 225Torr. What is the total pressure, in Torr, exerted by the gas mixture?

Short Answer

Expert verified

The total pressure is 765Torr.

Step by step solution

01

Given Information

We need to find the total pressure.

02

Simplify

In a gas, mixture, each gas exerts its partial pressure, which is the pressure it would exert if it were the gas in the container. Dalton's law that the total pressure of a gas mixture is the sum of the partial pressures of the gases in the mixture.

Total pressure is:

Nitrogen isPnit=425Torr

Oxygen isPoxy=115Torr

Helium is Phelium=225Torr

localid="1652623807311" role="math" Ptotal=pnit+Poxy+Phelium=425+115+225=765Torr

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