Question

The number of oxygen atoms present in 14.6 g
of magnesium bicarbonate [Mg(HCO3)2) is
(1) 6NA (2) 0.6NA
(3) NA (4) 0.5 NA
Plz explain​

Answer 1

Answer:

2

Explanation:

Molecular wt of magnesium bicarbonate is =146 g

So no. Of moles of it=14.6 ➗ 146=0.1

By molecular formula

Moles of O atom in 1 mole of bicarbonate is 6

Hence no. Of moles of O atom in 0.1mole of bicarbonate is= 0.6

Hence no. Of atom in. 0.6mole O =0.6 NA