What happens to the solubility of group II Sulphates as you
go down the group?
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Answer / navya
Solubility of the group 2 sulphates decreases down the group.
REASONS:
there is a little change in the lattice enthalaphy BUT
as the cation gets larger the hydration enthalaphy gets much
smaller
a large cation has a lower charge density and so is less
attracted to water.
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Answer / mantu kumar sharma
The size of anions being much larger compared to cation, the lattice enthalpy will remain almost constant within a particular group. Since the hydration enthalpy decrease down the group, solubility will decrease as found for alkaline earth metal sulphate & carbohydrates
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Organic Chemistry 
