Write the chemical name and chemical formula of washing soda. How is
it obtained from sodium chloride? Give equation of the reaction.
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Answer:
Sodium Carbonate dehydrated Na2Co3.10H2O
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washing soda
washing washing soda is calcium carbonate
decahydrate.
commonly known as soda Ash.
- NaCl + ammonia + water +carbon dioxide gives sodium hydrogen carbonate+ ammonium ammonium chloride
- sodium hydrogen carbonate is separated by filtration, dried sodium carbonate obtained
- anhydrous sodium carbonate is dissolved in water and recrystallized to get washing soda crystals containing 10 molecules of water of crystallisation.
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