# In a mixture of oxygen and nitrogen gas, 80.0% of the total gas pressure is exerted by the nitrogen. If the total pressure is "2.0 atm", what pressure does the oxygen exert?

Mar 20, 2018

$\text{0.4 atm}$

#### Explanation:

80%of pressure is exerted by nitrogen gas. So, 20%of pressure will be exerted by oxygen gas.

$\text{p"_("O"_2) = 20% "of 2 atm" = 20/100 × "2 atm" = "0.4 atm}$