The major industrial method for the preparation of elemental phosphorus is heating a mixture of...

Question

The major industrial method for the preparation of elemental phosphorus is heating a mixture of phosphate rock, carbon, and sand in an electric furnace. The chemical reactions can be represented by

Ca3(PO4)2 + SiO2 ? CaSiO3 + P4O10

and

P4O10 + C ? P4 + CO

a. First balance the equations.

b. Then calculate the percentage of Ca3(PO4)2 initially present in the rock sample if 307 kg of phosphate rock yields 42.5 kg of elemental P4.

Robert · Accepted Answer

mol. wt. of Ca
3
(PO
4
)
2
Mol. wt. of P
4
310 124
Answers :-
(a) . the balanced reactions are given below,
 (i) 2Ca
3
(PO
4
)
2
 + 6SiO
2
 6CaSiO
3
 + P
4
O
10
(ii) P
4
O
10
 + 10C P
4
 + 10CO
 (b) .

The major industrial method for the preparation of elemental phosphorus is heating a mixture of phosphate rock, carbon, and sand in an electric furnace. The chemical reactions can be represented by...

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