# The partial pressures of the gases in a miture are 0.00461 atm O_2, 1.78 atm N_2, and 0.975 atm Ar. What is the total pressure of the mixture?

Mar 31, 2017

The total pressure is simply the sum of the individual partial pressures..........

#### Explanation:

${P}_{\text{Total}} = {P}_{{O}_{2}} + {P}_{{N}_{2}} + {P}_{A r}$

$= \left(4.61 \times {10}^{-} 2 + 1.78 + 0.975\right) \cdot a t m$

$\cong 2.76 \cdot a t m$

This is a simple result of $\text{Dalton's Law of Partial Pressure}$, for which see here.