a tank contains a mixture of 3.0 mol of nitrogen gas, 2.0 mol of oxygen gas and 1.0 of carbon dioxide gas at 25 degrees celsius and a total pressure of 10.0 atm. Calculate the partial pressure in torr of each gas in the mixture?

Answer 1

Calculate the mole fraction of each gas.
XCO2 = moles CO2/total moles. Do the same for XO2 and XN2.
Then
PCO2 = XCO2*P_total
same process for PN2 and PO2.