Determine the mass of salt and water required to obtain 400g of a 15% solution.
| January 30, 2021 | education
The mass of the solution is 400 grams;
To find the mass of salt, it is necessary to multiply its mass fraction by the mass of the solution.
m salt = 400 x 0.15 = 60 grams;
To find the mass of water, subtract the mass of salt from the mass of the solution:
m water = 400 – 60 = 340 grams;
Check: 340 + 60 = 400;
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