Answer:
- 44.5 g of solute are contained in 356g of a 12.5%(w/w) solution.
Explanation:
12.5% (w/w) is the mass/mass percentage concentration of the solution.
- %(w/w) = (mass of solute/mass of solution) × 100
Subsititue with:
And solve for the mass of solute:
- 12.5 = (mass of solute / 356g) × 100
- mass of solute = 12.5 × 356g / 100 = 44.5 g ← answer
