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

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

Step-by-step 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.