Magnesium sulphate crystals (MgSO4.7H2O) can be dehydrated by heating . Calculate the percentage by mass of water present in the molecule.
Answers
Answered by
0
Answer:
51.2
Explanation:
Relative molecular mass of MgSO .7H2 O
=24+32+(16×4)+7(2+16)
=24+32+64+126=246
26g of Epsom salt contains 126g of water of crystallisation.
Hence, 100g of Epsom salt contains 100×126/246
The % of H2 O in MgSO4.7H2O = 51.2
Hope this helps you! ^-^
Similar questions