Question 189812

1.   Calcium phosphate, silicon dioxide, and coke may be heated together in an electric furnace to produce phosphorus, as shown in the following equation:

2 Ca3(PO4)2(s) + 6 SiO2(s) + 10 C(s) → 6 CaSiO3(s) + 10 CO(g) + P4(g)

In this reaction, what mass of calcium phosphate would be needed to make 100.0 g of phosphorus? What mass of calcium silicate would be formed as a by-product

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