How to find the amount of a substance, knowing the mass of the solution and the proportion

univerkov | August 17, 2021 | education

How to find the amount of a substance, knowing the mass of the solution and the proportion of this substance? For example, 800 g and 15% solution.

To find the amount of a substance in a solution, knowing the mass of the solution and the percentage concentration, you can use the formula.

W (in-va) = m (in-va) / m (solution) • 100%.

We transform the formula and get.

m (in-va) = W (in-va) • m (solution) / 100% = 15% • 800 g / 100% = 120 g.

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