A Gas Mixture of N₂ and CO₂ Has a Total

Multiple Choice

A gas mixture of N₂ and CO₂ has a total pressure of 8.00 atm and contains 12.5 mol of gas. If the partial pressure of N₂ is 3.69 atm, how many moles of CO₂ are in the mixture?

A) 5.77
B) 3.69
C) 4.31
D) 11.0
E) 6.73