Question

A mixture of gases contains 2.41 moles of O2, 1.24 moles of H2 and 1.92 moles of C. Calculate the partial pressure of gases if the total pressure is 3.0 atm

Answer 1

I wonder if you meant CO2 instead of C. T must be pretty high to have C has a gas.
Total mols = sum mols of each gas.
Then XO2 = nO2/total mols
XH2 = nH2/total mols
XC = nC/total mols.

Then pO2 = XO2*Ptotal = ?
pH2 = XH2*Ptotal
pC = XC*Ptotal