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(A) When $SO_2$ is passed through an aqueous solution of sodium hydroxide $(NaOH)$,it reacts to form sodium sulfite $(Na_2SO_3)$ and water. If $SO_2$

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$NaHSO_3$

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(A) When $SO_2$ is passed through an aqueous solution of sodium hydroxide $(NaOH)$,it reacts to form sodium sulfite $(Na_2SO_3)$ and water. If $SO_2$ is in excess,it further reacts with $Na_2SO_3$ to form sodium bisulfite $(NaHSO_3)$.The balanced chemical equation for the reaction with limited $SO_2$ is: $2NaOH(aq) + SO_2(g) \rightarrow Na_2SO_3(aq) + H_2O(l)$.However,in the context of standard chemistry problems regarding the reaction of $SO_2$ with $NaOH$ to form an acidic salt,the formation of $NaHSO_3$ is the characteristic reaction when $SO_2$ is in excess or when considering the stoichiometry of the bisulfite formation: $NaOH(aq) + SO_2(g) \rightarrow NaHSO_3(aq)$.

What is the product formed when $SO_2$ reacts with an aqueous solution of sodium hydroxide?

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