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As per your syllabus, if 10 g of salt is dissolved in 90 g of water, what is the mass-by-mass percentage of the solution?

A9% m/m
B90% m/m
C11.1% m/m
D10% m/m
Answer & Solution
Correct answer: D. 10% m/m
Mass of solution = 10 + 90 = 100 g. % m/m = (10/100) × 100 = 10% (As per your syllabus, ).
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