# Calculate what mass of salt and what volume of water will be required

July 24, 2021 | education

| **Calculate what mass of salt and what volume of water will be required to prepare a solution of 250 g with a mass fraction of 20% sodium chloride.**

The mass of the solution is 250 grams;

To find the mass of salt, it is necessary to multiply its mass fraction by the mass of the solution.

m salt = 250 x 0.2 = 50 grams;

To find the mass of water, subtract the mass of salt from the mass of the solution:

m of water = 250 – 50 = 200 grams;

Check: 200 + 50 = 250;

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.