What is the mass percentage of NaCl in the solution if 1.75g of NaCl is dissolved in 5.85g of water.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 23.02
Mass percentage of a component of a solution is defined as:
$\text{Mass percentage}=\frac{\text{Mass of the component in the solution}}{\text{Total mass of the solution}}× 100$
For mass percentage of NaCl in solution, it is given
Mass of NaCl = 1.75g (Mass of component)
Mass of water = 5.85g
Total mass of the solution = 1.75 + 5.85 = 7.60 g
Therefore, Mass percentage of NaCl = (1.75 ÷ 7.60) × 100 = 23.02%