15. Solving a chemistry problem

15. Solving a chemistry problem

1. For the titration of 25.00 cm3 of a solution of FeSO4 in H2SO4, 3.25 cm3 of a 0.1 mol/l (n) solution of K2Cr2O7 was used. How much water must be added to 200.0 cm3 of an iron salt solution to make a solution of exactly 0.05 mol/l (n)?

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