Question

What happens when washing soda is recyristlised in aqueous solution

Answer 1

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Answer 2

Anhydrous sodium carbonate (soda ash) is dissolved in water and recrystallised to get washing soda crystals containing 10 molecules of water of crystallisaton ( sodium carbonate decahydrate)

The salt being hygroscopic, recrystallises along with capturing of water of crystallisation. For every 1 molecule of washing soda, 10 molecules of water of crystallisation are captured.