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%.
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