# Determine the mass fraction of sodium chloride when dissolving 50 g of it in 250 ml of water

August 22, 2021 | education

| In this task, you will need to determine the mass fraction of sodium chloride when dissolved in water.

To solve, you need to use the following formula.

Wr.v. = mr.w. / mr-ra * 100%.

In order to determine the mass of the solution, do the following.

mr-ra = mr.v. + mwater.

Let’s determine the mass of the solution.

m = p * V = 1 * 250 = 250 g.

In order to determine the mass of water, the required density is multiplied by the volume.

mr-ra = 50 + 250 = 300 g.

Determine the mass fraction of sodium chloride.

W = 50/300 * 100 = 16.7%.

This means that the mass fraction of sodium chloride is 16.7%.

Answer: 16.7%.

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.