A solution weighing 250 g contains sodium sulfate 50 g. Determine the mass fraction of sodium sulfate.

The mass of the solution is equal to – 250 g.

The mass of sodium sulfate is 50 g.

Next, we determine the mass fraction of sodium sulfate in this solution.

To solve this problem, you will need to use the following formula:

W = m in-va / m solution * 100%.

In the next step, you need to substitute the task data into this formula. Let’s define the value.

W = 50/250 * 100 = 20%.

At the decision, it was found that the solution contains 20 percent sodium sulfate.

Answer: W = 20%.



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