136. Solving a chemistry problem
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136. Solving a chemistry problem
When determining the aluminum content, 20 cm3 of a 0.0452 M solution of complexone III was added to a solution of a sample of the substance, and 6.05 cm3 of a 0.05 M solution of ZnSO4 was used to titrate the excess of the latter. Calculate the mass of aluminum in the sample.
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