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.
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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.
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