Question

How do i calculate the number of moles of magnesium, chlorine, and oxygen atoms in 7.70 moles of magnesium perchlorate, Mg(ClO4)2. Express the number of moles of Mg, Cl, and O atoms numerically, separated by commas. moles of Mg, Cl, O =?

Answer 1

Answer:

7.7,15.4,61.6

Explanation:

1mol Mg(ClO4)2 contains :-

1mol Mg atoms

2mol Cl atoms

8mol O atoms

To find no. of moles of each element, we can multiply the above values by 7.7mol

1mol Mg atoms1mol Mg(ClO4)2×7.7mol Mg(ClO4)2=1×7.7=7.7moles

Similarly,

2mol Cl atoms1mol Mg(ClO4)2×7.7mol Mg(ClO4)2=2×7.7=15.4moles

8mol O atoms1mol Mg(ClO4)2×7.7mol Mg(ClO4)2=8×7.7=61.6moles