Nitrox is a gas mixture used by scuba divers to prevent nitrogen narcosis, a los

Question

Nitrox is a gas mixture used by scuba divers to prevent nitrogen narcosis, a loss of mental and physical function, caused by increased levels of dissolved nitrogen in the blood. The mole fraction of O_2 is 0.37, and the mole fraction of N_2 is 0.63 in a 10.0 L tank with a pressure of 50 atm at 25 degree C. Calculate the partial pressure of O_2 and N_2. Express your answers using two significant figures separated by a comma. Calculate the number of moles of O_2 and N_2. Express your answers using two significant figures separated by a comma.

Explanation / Answer

B)
find the total number of moles 1st using
P*V = n*R*T
50*10 = n*0.0821*(25+273)
n = 20.4 mol

mol of O2 = 0.37*20.4 = 7.5 mol
mol of N2 = 0.63*20.4 = 13 mol

Answer: 7.5,13 mol

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