What mass of salt should be added to 200 ml of water to obtain a 3% solution?
| February 6, 2021 | education
In this solution, 200 grams of water will have a mass fraction of 97%.
Find the mass of the solution by dividing the mass of water by its mass fraction.
m solution = 200 / 0.99 = 206.2 grams;
Find the mass of salt by subtracting the mass of water from the mass of the solution.
m salt = 206.2 – 200 = 6.2 grams;
Checking: 6.2 + 200 = 206.2;
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