A solution is made by dissolving 22.5 mL of oil in enough gasoline to give 60.5 mL of solution. What is the % (v/v) of oil in the solution?
A)37.2 % (v/v)
B)269% (v/v)
C)0.372% (v/v)
D)27.1% (v/v)

Question

Quizplus · Accepted Answer

To find the % (v/v) of oil in the solution, we need to divide the volume of oil by the volume of the solution and then multiply by 100.

% (v/v) of oil = (volume of oil/volume of solution) x 100

Volume of gasoline = Volume of solution - volume of oil
Volume of gasoline = 60.5 mL - 22.5 mL
Volume of gasoline = 38 mL

% (v/v) of oil = (22.5 mL/60.5 mL) x 100
% (v/v) of oil = 0.372 x 100
% (v/v) of oil = 37.2%

Therefore, the answer is A.

A Solution Is Made by Dissolving 22