Question

Phosphoric acid can be manufactured according to the following reaction:
Ca:(PO4)2 + 3 Sio+ 5 C +5 02 + 3 H20. =
3 CaSiO; + 5 CO. + 2 H3PO,
If equal masses of calcium phosphate (Mol. wt = 310.) and silica (Mol. wt = 60.0) are reacted with excess
carbon, oxygen, and water to produce 1.00 X 10 kg phosphoric acid (Mol.wt = 98.0), what mass of
calcium phosphate was used?
a) 610kg
b) 800kg
Sr920kg
d) 1580kg
​

Answer 1

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