Question

how many grams p4 is formed for each mole of ca3(po4)2?

how many grammes of p4 is produced for each gram of ca3(po4)2 used?

how many moles sio2 is required for each mole of ca3(po4)2 used?

how many moles c is required for each mole of ca3(po4)2 used?

Answer 1

2Ca₃(PO₄)₂ $+$ 6SiO₂ $+$ 10C $\to$ P₄ $+$ 6CaSiO₃ $+$ 10CO

a)

Molar mass of P₄ $=123.9$

Moles of P₄ formed $=\frac{1}{2}$

Mass $=61.95g$

b)

Molar mass of calcium phosphate $=310.2$

Grams of P₄ $=\frac{1}{2}×\frac{1}{310.2}×123.9=0.1997g$

c)

Moles of SiO₂ $=\frac{1}{2}×6=3$ moles

d)

Moles of C $=\frac{1}{2}×10=5$ moles