Chemistry, asked by vbram9086, 2 months ago

Find the percentage of mass of water in Epsom salt MgSO4. 7H20

Answers

Answered by santwanamohanty3

1

Explanation:

Relative molecular mass of MgSO

4

.7H

2

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 H

2

O in MgSO

4

.7H

2

O=51.2

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