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1) Calculate the grams of EDTA (MW=372,24) required to make a 250,0 ml EDTA solution so that in the titration of 12,50 ml of H2O with 40 french degrees of hardness, 25,00 ml of the edta solution are consumed

2) Calculate the molarity and titer in mg CaCO3/ml of the initial edta solution.

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