Mass percent of solute = (mass of solute / mass of solution) × 100. For 5 g NaCl in 95 g water:
A95%
B5% (5g/100g)
C50%
D5%
Answer & Solution
Correct answer: B. 5% (5g/100g)
Total mass = 5 + 95 = 100 g. Mass% = (5/100) × 100 = 5%. Common way to express concentration of solutions.
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