Question

Calculate the percentage composition of water of crystallization in magnesium nitrate crystals i.e magnesium nitrate hexahydrate. (At wt: Mg=24; N=14; O=16; H= 1) write your answer without space till two decimal point.

Answer 1

Molar mass of Mg(NO3)2.6H2

O, =256 gm

So, % of Mg =24×

256.4

100

=9.38 %