How many moles of magnesium phosphate
How many moles of magnesium phosphate, Mg3(PO4)2 will contain 0.25 mole of oxygen atoms?
- 2.5 x 10-2
- 0.02
- 1.25 x 10-2
- 3.125 x 10-2
Answer
1 mol of Mg3(PO4)2 = 3 mol of Mg atom + 2 mol of P atom + 8 mol of O atom
8 mol of oxygen atoms are present in = 1 mol of Mg3(PO4)2
0.25 mol of oxygen atoms are present in = 1 *.25/8= 3.125*10-2 mol of Mg3(PO4)2
The correct option is D.