What is the name of $H_{2} S O_{3}$ $H_2SO_3$ ?

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What is the name of $H_{2} S O_{3}$ $H_2SO_3$ ?

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Answer 1 · 2016-12-14T16:54:12

This is $sulfurous acid$ $"sulfurous acid"$ .

Explanation:

$Sulfurous acid$ $"Sulfurous acid"$ is an hydrate of $sulfur(IV) oxide$ $"sulfur(IV) oxide"$ . It is a much weaker acid than $H_{2} S O_{4}$ $H_2SO_4$ .

In solution it is probably best rationalized as $S O_{2} \cdot H_{2} O$ $SO_2*H_2O$ , i.e. $hydrated sulfur dioxide$ $"hydrated sulfur dioxide"$ . $p K_{a} = 1.81$ $pK_a=1.81$ .

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What is the name of $H_{2} S O_{3}$ $H_2SO_3$ ?

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