Question

$18g$ of sucrose is dissolved in $162g$ of water. Calculate the mass percentage of solution.

• A. $18\%$
• B. $10\%$
• C. $20\%$
• D. $15\%$

Answer 1

Answer: (B)

We know that mass percentage
$=\frac{\text{ Mass of the component in the solution }}{\text{ Total mass of the solution }}\times 100$
and total mass of solution
= mass of sucrose (solute) $+$ mass of solvent (water)
$=(18+162)g=180g$
$\therefore$ Mass percentage $=\frac{18}{180}\times 100=10\%$