Answer:
13.3 % by mass of NaCl
Explanation:
Solution is made of NaCl and water
Mass of NaCl = 23 g → Solute
Mass of H₂O = 150 g → Solvent
Total mass of solution = Solute + Solvent
23 + 150 = 173 g
Mass percent of NaCl → (Mass of solute / Mass of solution) . 100
(23g / 173g) . 100 = 13.3 g
