Dissolving salt in water gave 400 g of a solution with a salt fraction of 20% by weight. how much salt was dissolved?
| June 9, 2021 | education
Solution weight = 400 g.
Mass fraction of solute = 20% or 0.2 (dimensionless value).
Solute mass = solution mass * solute mass fraction = 400 * 0.2 = 80 g.
Answer: the mass of the dissolved salt is 80 g.
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