Answer:option d. A solution contains solvent in large amounts and solute in smaller quantities.
Answer : The partial pressure of and are, 84 torr and 778 torr respectively.
Explanation : Given,
Mass of = 15.0 g
Mass of = 22.6 g
Molar mass of = 197.4 g/mole
Molar mass of = 32 g/mole
First we have to calculate the moles of and .
Now we have to calculate the mole fraction of and .
Now we have to partial pressure of and .
According to the Raoult's law,
= partial pressure of gas
= total pressure of gas
= mole fraction of gas
Therefore, the partial pressure of and are, 84 torr and 778 torr respectively.
the answer is a as I think.