The mass of water and salt that will be required to prepare 200 g of a solution with a 5% mass fraction of salt.
March 28, 2021 | education
| Let’s calculate the weight of the dissolved salt.
M salt = 200 x 0.05 = 10 grams;
Similarly, we find the weight of the solvent (water).
(In the calculations, we will make the assumption that the density of water is 1 gram / ml).
M water = 200 x 0.95 = 190 grams = 190 ml;
Let’s check. To do this, add the masses of the components of the solution and get the mass of the required solution.
10 + 190 = 200;
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