Calculate the mass of water required to prepare 160 grams of a 25% salt solution.
| February 3, 2021 | education
The mass of the solution is 160 grams;
To find the mass of salt, it is necessary to multiply its mass fraction by the mass of the solution.
m salt = 160 x 0.25 = 40 grams;
To find the mass of water, subtract the mass of salt from the mass of the solution:
m water = 160 – 40 = 120 grams;
Check: 120 + 40 = 160;
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