(a) Write the chemical formula of washing soda. (b) What happens when the crystals of washing soda are left exposed to air? (c) What colour change would you observe on adding (i) blue litmus solution to an aqueous solution of washing soda.(ii) red litmus solution to an aqueous solution of washing soda.
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a) washing soda : Na2co3.10H2o
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(a)Chemical formula is na2CO3.10H20(sodium decahydrate).
(b)When sodium carbonate crystals are exposed to air they lose 9 molecules of water of crystallization and becomes Na2CO3.H20(sodium Monohydrate)
(b)When sodium carbonate crystals are exposed to air they lose 9 molecules of water of crystallization and becomes Na2CO3.H20(sodium Monohydrate)
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