Acetone, C₃H₆), is the main ingredient of nail polish remover. A solution is made up by adding 35.0 ml of acetone (d=0.790g/ml) to 50.0ml of ethyl alcohol, C₂H₅OH (d=0.789 g/ml). Assuming volumes are additive, calculate:

(a). the mass percent of acetone in the solution.

(b). the volume percent of ethyl alcohol in the solution.

(c). the mole fraction of acetone in the solution.