In anhydrous compound H2O molecule comes out from the coordination cage
so in 0.895g of MnI2 0.17 g water as the weight of anhydrous molecule 0.725g
Molecular weight of water 18g
molecular weight of anhydrous MnI2 308.74 gm
So in 0.895g of hydrate 0.00234 mole of MnI2 present and 0.0094 mole of H2O present
So in 1 mole of MnI2 anhydrous contain 4 mole of water
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