Answer to Question #141577 in General Chemistry for yara

Question

A solution is made by adding 25mL of benzene to the solvent toluene. The volume of the solution is 80mL. What is the percent concertation by volume of benzene?

Answer 1

Volume of benzene (solute) = 25mL

Volume of solution = 80mL

% volume conc. = volume of solute/volume of solution × 100%

% volume conc. = 25/80 × 100%

% volume conc. = 31.25%

The %concentration by volume of benzene in toluene is therefore 31.25%.