Gas mixture (help due tonight)

Question

A gas mixture contains each of the following gases at the indicated partial pressure.

CO2 423 mm Hg

Ar 103 mm Hg

O2 166 mm Hg

H2 58 mm Hg

What is the total pressure of the mixture?

Answer 1

Dalton's law of partial pressures says that you can add the partial pressures of each component to find the total pressure of the mixture.

P1 + P2 + P3 + P4 = P total

PCO2 + PAr + PO2 + PH2 = P total

423 mmHg + 103 mmHg + 166 mmHg + 58 mmHg = 750 mmHg