A gas mixture contains sulfur trioxide at a pressure of 1.45 atm and sulfur dioxide at a pressure of 0.32 atms. What is the total pressure of the gas mixture?

1.77 atm

Explanation:

Total pressure in a mixture is, the sum of partial pressures from each gas.

Let's analyse with the Universal Gases Law

Total pressure. V = (total moles). R. T

Partial pressure of a gas. V = (mol of that gas). R. T

Mole fraction:

Partial pressure of a gas / Total pressure = moles of the gas / Total moles

Then, total pressure in this mixture is:

1.45 atm + 0.32 atm = 1.77 atm