please

5. 50.00 ml of a Mg2+ solution was titrated, to which 10 ml of a buffer solution of pH = 10.0 was added, using a standard 0.1102 mol/L EDTA solution and calagite as an indicator. To reach the end point of the titration 9.32 ml of titrant was spent. a) calculate the concentration of magnesium cation in the analyzed solution. b) deduce and calculate the fraction of Y4- (deprotonated form of EDTA) for pH=10.0, considering only the last two protolysis c) deduce and calculate the conditional formation constant of [MgY]2- a pH=10.0. d) calculate the PMG in the titrant after adding 9.32 ml of EDTA standard solution. Data: log Kf ([MgY]2-) = 9,12 pKa3(H4Y) = 2,00; pKa4(H3Y-) = 2,69; pKa5(H2Y2-) = 6,16; pKab(HY3-) = 10,37 = =