JOHNCONNOR94GGO JOHNCONNOR94GGO Chemistry Answered 1. A 0.500-g sample of stannous fluoride gives a 0.590-g precipitate of stannous phosphate. Calculate the theoretical yield and percent yield of Sn3(PO4)2. 3 SnF₂(aq) + 2 Na3PO4(aq) → Sn3(PO4)2(S) + 6 NaF(aq)