80. Solving a chemistry problem

80. Solving a chemistry problem

4. Calculate the concentration of copper (in mol/l) in the solution, if when analyzing 10 ml of the test solution by the addition method, a wave of 26.5 mm was obtained, and after adding 0.5 ml of a standard solution with a concentration of 1 * 10-4 g/l, the height waves increased to 36 mm.

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