Please show work. Letters B and D only

17-20. Calculate the volume of 0.0500 M EDTA needed to titrate a, 29.13 mL of 0.0598 M Mg(NO3)2. Answer + b. the Ca in 0.1598 g of Cacos. c. the Ca in a 0.4861-g mineral specimen that is 81.4% brushite, CaHPO4-2H,0 (172.09 g/mol). Answer d. the Mg in a 0.1795-g sample of the mineral hydromagnesite, 3MgCO, Mg(OH), -3H30 (365.3 g/mol). e. the Ca and Mg in a 0.1612-g sample that is 92.5% dolomite, CaCO3 MgCO3 (184.4 g/mol).