89. Solving a chemistry problem

89. Solving a chemistry problem

3. Determine the mass of aluminum in 250.00 cm3 of solution, if after adding 20.00 cm3 of Trilon B solution with a concentration of 0.025 mol/dm3 to 25.00 cm3 of this solution, 10.50 cm3 of 0.020 M CuSO4 solution was used to titrate the residue of Trilon B.

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