2. The concentration of the working solution of complexone III was established based on a solution containing 12.2400 reagent grades in 500.00 cm3. Fe(NH4)(SO4)2*12H2O. The titration of 15.00 cm3 of a solution of this salt requires 14.20 cm3 of a solution of complexone III. Calculate the molar concentration of T from the CaO solution of complexone III.

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