Evaporation of 50 g of the solution gave 3 g of a solid residue. calculate the mass fraction of the solute in the solution.
| February 26, 2021 | education
Let’s designate the total mass of the solution in 50 g as 100%. Let’s make a proportion and find what percentage is 3 g of solid.
50 g – 100%
3 g – x%
x = 3 * 100/50;
x = 300/50;
x = 6.
Answer: the mass fraction of the solute is 6%.
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