---
title: "Hydrogen sulfide, \\(\\text{H}_2\\text{S(aq)}\\), is a weak diprotic acid present in natural mineral water. When dissolved in water, it undergoes the initial ionization reaction shown below:  \\[ \\text{H}_2\\text{S(aq)} + \\text{H}_2\\text{O(l)} \\rightleftharpoons \\text{HS}^-\\text{(aq)} + \\text{H}_3\\text{O}^+\\text{(aq)} \\]  Which species acts as the conjugate base of \\(\\text{H}_2\\text{S(aq)}\\) in this reaction?"
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url: "https://nerd-notes.com/ubq/120009/"
date_modified: "2026-08-21T08:31:50+00:00"
---

# Hydrogen sulfide, \(\text{H}_2\text{S(aq)}\), is a weak diprotic acid present in natural mineral water. When dissolved in water, it undergoes the initial ionization reaction shown below:

\[ \text{H}_2\text{S(aq)} + \text{H}_2\text{O(l)} \rightleftharpoons \text{HS}^-\text{(aq)} + \text{H}_3\text{O}^+\text{(aq)} \]

Which species acts as the conjugate base of \(\text{H}_2\text{S(aq)}\) in this reaction?

Hydrogen sulfide, \(\text{H}_2\text{S(aq)}\), is a weak diprotic acid present in natural mineral water. When dissolved in water, it undergoes the initial ionization reaction shown below:

\[ \text{H}_2\text{S(aq)} + \text{H}_2\text{O(l)} \rightleftharpoons \text{HS}^-\text{(aq)} + \text{H}_3\text{O}^+\text{(aq)} \]

Which species acts as the conjugate base of \(\text{H}_2\text{S(aq)}\) in this reaction?

- **A.** \(\text{HS}^-\text{(aq)}\)
- **B.** \(\text{S}^{2-}\text{(aq)}\)
- **C.** \(\text{H}_3\text{O}^+\text{(aq)}\)
- **D.** \(\text{H}_2\text{O(l)}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/120009/*