Question

Suppose there is a gaseous mixture of nitrogen and oxygen. If the total pressure of the mixture is 480 mmHg , and the partial pressure of nitrogen is 220 mmHg , calculate the partial pressure of oxygen in the mixture using Dalton's law.

Answer 1

Dalton’s law:

P_total = P₁ + P₂ + ... P_n

P₁, P₂, P_n are the partial pressures of the individual gases in the mixture

480=220+ P_O2

P_O2=260 mmHg