Determine the mass of the sediment obtained by merging two solutions, one of which contains 4.5 g of calcium chloride

Determine the mass of the sediment obtained by merging two solutions, one of which contains 4.5 g of calcium chloride, and the other – 4.1 g of sodium orthophosphate. The product yield is 88%.

3CaCl2 + 2Na3PO4 → Ca3 (PO4) 2 ↓ + 6NaCl
η (Ca3 (PO4) 2 = 88%
n (CaCl2) = 4.5 / 111 = 0.04 mol – in excess
n (Na3PO4) = 4.1 / (3×23 + 31 + 64) = 4.1 / 164 = 0.025 mol – deficient
n (Ca3 (PO4) 2) = n (Na3PO4): 2 = 0.0125 mol
m (Ca3 (PO4) 2) = 0.0125 x (40×3 + 2 x (31 + 64)) = 3.875 g
m (practical) = 3.875 x 0.88 = 3.41 g.
Answer: the mass of the sediment obtained is 3.41 g.

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