3Ca(NO3)2(aq)+2Na3PO4(aq)->Ca3(PO4)2(s)+6NaNO3(aq)
(a) the grams of Ca3(PO4)2 that can be obtained from 126 mL of 0.750 M Ca(NO3)2
(b) the volume of 0.10 M Na3PO4 needed to react with 13 mL of 0.30 M Ca3(NO3)2
(c) the molarity (M) of the Ca(NO3)2 solution when 46.0 mL react with 57.3 mL of 3.8 M Na3PO4