Question

If 25 ml of acetone mixed with 150 ml of water to form an aqueous solution, then calculate the volume percentage of solution?

Answer 1

Concentration of solution

• The relative amount of solute and solvent present in a solution is known as concentration of solution.
• Concentration of solution can be expressed in number of ways. i.e mass percentage, volume percentage, mass by volume percentage, strength of solution.

Volume percentage

• The number of parts by volume of the solute dissolved in 100 parts by volume of the solution

$\mathrm{Volume}\%=(\mathrm{Volume}\mathrm{of}\mathrm{solute}/\mathrm{Volume}\mathrm{of}\mathrm{solution})\mathrm{x}100$

Volume of acetone given (solute) = 25 ml

Volume of water (solvent) = 150 ml

Volume of solution = 175 ml

Substituting in equation

Volume % = (25 / 175) x 100

Volume % = 0.154 x 100 = 15.4 %

Therefore, Volume % = 15.4 %