Question

In a gas mixture, the partial pressure are argon $415mmHg$, neon $75mmHg$, and nitrogen $125mmHg$. What is the total pressure, in $mmHg$, exerted by the gas mixture?

Short answer

The total pressure is$615mmHg$.

Step-by-step solution

Given Information

We need to find the total pressure.

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.

The total pressure is:

Argon is $P_{Ar}=415mmHg$

Neon is $P_{ne}=75mmHg$

Nitrogen is $P_n=125mmHg$

$$\begin{gathered} P_{total}=P_{Ar}+P_{ne}+P_n \\ =415mmHg+75mmHg+125mmHg \\ =615mmHg \end{gathered}$$