Amixture of three noble gases has a total pressure of 1.25 atm. the individual pressures exerted by neon and argon are 0.68
atm and 0.35 atm, respectively. what is the partial pressure of the third gas, helium?
use py-p+p 2+p3 + +p
o 0.22 am
o 0.33 atm
o 1.03 atm
o 228 atm

0.22 atm

Explanation:

The total pressure is the sum of the partial pressures.

P = P₁ + P₂ + P₃

1.25 atm = 0.68 atm + 0.35 atm + P

P = 0.22 atm

0.22 atm

Explanation:

First, you need to add up each of the values of the known gases

0.68+0.35

Then you need to subtract that value from the total pressure to find the partial pressure of the third value

1.25-(0.68+0.35)

By doing that you get the answer of 0.22 atm