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Write the formulae of sodium chloride and sodium carbonate. Explain why an aqueous solution of sodium chloride is neutral but an aqueous solution of sodium carbonate is basic (or alkaline). Write chemical equations of the reactions involved.
The formula of sodium chloride is NaCl.
The formula of sodium carbonate is Na2CO3.
The aqueous solution of sodium chloride is neutral because it is prepared from the reaction between a strong acid and a strong base
The reaction of preparation of sodium chloride: $NaOH+HCl→NaCl+H_2O$
The aqueous solution of sodium carbonate is alkaline because it is prepared from the reaction between a weak acid and a strong base.
The reaction of hydrolysis of sodium carbonate:$Na_2CO_3(s) + 2H_2O(l) → 2NaOH(aq) + H_2CO_3(aq)$
Updated on: 10-Oct-2022
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