Answer to Question #169375 in General Chemistry for lyndsey

Question

A gas mixture containing oxygen, nitrogen, and helium exerts a total pressure of 925 torr .

If the partial pressures are oxygen 445 torr and helium 50 torr, what is the partial pressure (torr) of the nitrogen in the mixture?

Answer 1

P_Total=925 torr , P_O = 445 torr , P_He = 50 torr

P_Total = P_O + P_He + P_N

P_N = P_Total - P_O - P_He

P_N = 925 - 445 - 50

P_N = 430 torr