Question

A container is filled with a mixture of gases:

O2, which has a pressure of 1.0 atm.
N2, which has a pressure of 0.75 atm,
And Cl2 at some unknown pressure.
If the total pressure in the container is 3.30 atm, what is the pressure of Cl2?

Answer 1

Answer:

The partial pressure of chlorine gas in the mixture is 1.55 atm.

Explanation:

Partial pressure of oxygen gas = $p_1=1.0 atm$

Partial pressure of nitrogen gas = $p_2=0.75 atm$

Partial pressure of chlorine gas = $p_3=?$

Total pressure of the mixture of gases = P = 3.30 atm

Using Dalton's law of partial pressure:

$P=p_1+p_2+p_3$

$3.30 atm=1.0 atm+ 0.75 atm+p_3$

$p_3=3.30atm - (1.0 atm+ 0.75 atm)=1.55 atm$

The partial pressure of chlorine gas in the mixture is 1.55 atm.