When a hydrated sample of calcium sulphate C a SO 4 , X H 2 O was heated until all the water was lost, the following data was recorded Mass of crucible 30 296g Mass of crucible hydrated salt 33 111g Mass of crucible anhydrous salt 32 781g Determine the empirical formula of the hydrated salt (relati...

When a hydrated sample of calcium sulphate C a SO 4 , X H 2 O was

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When a hydrated sample of calcium sulphate C_aSO₄, X H₂O was heated until all the water was lost, the following data was recorded.
Mass of crucible
= 30.296g
Mass of crucible + hydrated salt
=33.111g
Mass of crucible + anhydrous salt
=32.781g
- Determine the empirical formula of the hydrated salt (relative formula mass of C_aSO₄ =136, H+O=18) (3mks)