63. Solving a chemistry problem
55. The concentration of the working solution of EDTA was determined by a solution containing 25 g of FeNH4 (SO4) 2 * 12H2O in 1 liter. For titration of 10 ml of this solution, 12.50 ml of EDTA solution were used. Calculate the molar concentration, titer of Fe2O3 of EDTA solutions.
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