# chemistry

determine the % of water of crystallization in pure sample of green vitriol (FeSo4.7H2O)

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1. Dear shashank,
The chemical formula of FeSo4.7H2O
= 55.8+ 32.1+ 16x4 + 7x18
= 277.9

The percentage of water of crystallization=
= (7x18)/ 277.9 x 100%
= 45.34%

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posted by Barry
2. I don't know

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posted by Devil
4. Feso4.7H20. 56+32+64+126. 152+126. 278

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