Calculate the percentage composition of water of crystallization in ma

1.	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» Given, Compound Name = Mg(NO₃)₂.6H₂O Molecular mass of Mg = 24 g, N = 14 g, O = 16 g, H = 1 g. Molar Mass = 24+[2(14+48)]+(618) g = 24+[262]+108 g = 24+124+108 g = 256 g Percentage COMPOSITION of Water in Magnesium Nitrate Hexahydrate = (108/256)*100 % = 42.18% I hope this helps.

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»

Given,

Compound Name = Mg(NO₃)₂.6H₂O

Molecular mass of Mg = 24 g, N = 14 g, O = 16 g, H = 1 g.

Molar Mass = 24+[2(14+48)]+(6*18) g

= 24+[2*62]+108 g

= 24+124+108 g

= 256 g

Percentage COMPOSITION of Water in Magnesium Nitrate Hexahydrate = (108/256)*100 %

= 42.18%

I hope this helps.