---
title: "A student prepares a saturated solution of \\(\\text{BaSO}_4\\) by adding solid \\(\\text{BaSO}_4\\) to a \\(0.10\\text{ M }\\text{Na}_2\\text{SO}_4\\text{(aq)}\\) solution at \\(25^\\circ\\text{C}\\). The dissolution equilibrium and its solubility product constant at this temperature are represented below.  \\[ \\text{BaSO}_4\\text{(s)} \\rightleftharpoons \\text{Ba}^{2+}\\text{(aq)} + \\text{SO}_4^{2-}\\text{(aq)} \\quad K_{sp} = 1.0 \\times 10^{-10} \\]  Assuming that the volume of the solution does not change and that the dissolution of \\(\\text{BaSO}_4\\text{(s)}\\) contributes a negligible amount of \\(\\text{SO}_4^{2-}\\text{(aq)}\\), what is the molar solubility of \\(\\text{BaSO}_4\\text{(s)}\\) in this solution?"
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date_modified: "2026-08-23T04:04:19+00:00"
---

# A student prepares a saturated solution of \(\text{BaSO}_4\) by adding solid \(\text{BaSO}_4\) to a \(0.10\text{ M }\text{Na}_2\text{SO}_4\text{(aq)}\) solution at \(25^\circ\text{C}\). The dissolution equilibrium and its solubility product constant at this temperature are represented below.

\[ \text{BaSO}_4\text{(s)} \rightleftharpoons \text{Ba}^{2+}\text{(aq)} + \text{SO}_4^{2-}\text{(aq)} \quad K_{sp} = 1.0 \times 10^{-10} \]

Assuming that the volume of the solution does not change and that the dissolution of \(\text{BaSO}_4\text{(s)}\) contributes a negligible amount of \(\text{SO}_4^{2-}\text{(aq)}\), what is the molar solubility of \(\text{BaSO}_4\text{(s)}\) in this solution?

A student prepares a saturated solution of \(\text{BaSO}_4\) by adding solid \(\text{BaSO}_4\) to a \(0.10\text{ M }\text{Na}_2\text{SO}_4\text{(aq)}\) solution at \(25^\circ\text{C}\). The dissolution equilibrium and its solubility product constant at this temperature are represented below.

\[ \text{BaSO}_4\text{(s)} \rightleftharpoons \text{Ba}^{2+}\text{(aq)} + \text{SO}_4^{2-}\text{(aq)} \quad K_{sp} = 1.0 \times 10^{-10} \]

Assuming that the volume of the solution does not change and that the dissolution of \(\text{BaSO}_4\text{(s)}\) contributes a negligible amount of \(\text{SO}_4^{2-}\text{(aq)}\), what is the molar solubility of \(\text{BaSO}_4\text{(s)}\) in this solution?

- **A.** \(1.0 \times 10^{-9}\text{ M}\)
- **B.** \(1.0 \times 10^{-8}\text{ M}\)
- **C.** \(1.0 \times 10^{-5}\text{ M}\)
- **D.** \(1.0 \times 10^{-4}\text{ M}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/120294/*