Science (chemistry) help please

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The following data was obtained from titrating a solution containing 25 mL of 0.0100 M MgCl2 solution, 1 mL of NH3OH buffer, and 10 drops of Calmagite with EDTA. Calculate the concentration of EDTA. Report the answer with three sig figs.

I don't know what to do? I know that
0.0100(0.025L)=0.00025/(0.001)=0.25 but its not correct so am I doing the process incorrectly? please help anything will be appreciated

  • Science (chemistry) help please -

    I don't see any data. Hwo many mL EDTA did it take?
    Where you divide by 0.001--that is where L EDTA goes.

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