Question

question 19 the mass percent of a solution containing 25 g in 125 g of water is 16.7%. **pease give the answer to one decimal. blank 1 16.7

Explanation:

Step1: Find total mass of solution

Total mass = mass of solute + mass of solvent = $25 + 125=150$ g

Step2: Calculate mass - percent

Mass - percent = $\frac{\text{mass of solute}}{\text{total mass of solution}}\times100\%=\frac{25}{150}\times 100\%$
$=\frac{1}{6}\times100\%\approx 16.7\%$

Answer:

$16.7$