Mixed two solutions of the same weight. One solution contains 15% salt, the other 28% salt.
| April 11, 2021 | education
Mixed two solutions of the same weight. One solution contains 15% salt, the other 28% salt. Find the concentration of the resulting solution.
The problem can be solved in different ways.
Since the solutions have the same masses, the problem of finding a new concentration of a solution is reduced to finding the arithmetic mean of the concentrations of the sought solutions.
(0.15 + 0.28) / 2 = 0.43 / 2 = 0.215 = 21.5% – the concentration of the solution obtained by mixing two other solutions.
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