Question

How many moles of Ca3(PO4)2, could be prepared from
10 g of calcium?
(1) 0.0415
(2) 0.0833
(3) 0.03
(4) 0.015​

Answer 1

Answer:

(2) 0.0833 mole

Explanation:

120 g Ca gives - 1 mole

1g gives - 1/120 mole

and

10 g gives - 1/120 ×10 = 0.0833 mole