---
title: "A student prepares a solution by dissolving \\(14.2 \\text{ g}\\) of solid sodium sulfate (\\(\\text{Na}_2\\text{SO}_4\\), molar mass \\(142 \\text{ g/mol}\\)) in enough distilled water to make exactly \\(500.0 \\text{ mL}\\) of solution in a volumetric flask. What is the molarity of the \\(\\text{Na}_2\\text{SO}_4\\text{(aq)}\\) solution?"
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url: "https://nerd-notes.com/ubq/119202/"
date_modified: "2026-08-19T12:39:20+00:00"
---

# A student prepares a solution by dissolving \(14.2 \text{ g}\) of solid sodium sulfate (\(\text{Na}_2\text{SO}_4\), molar mass \(142 \text{ g/mol}\)) in enough distilled water to make exactly \(500.0 \text{ mL}\) of solution in a volumetric flask. What is the molarity of the \(\text{Na}_2\text{SO}_4\text{(aq)}\) solution?

A student prepares a solution by dissolving \(14.2 \text{ g}\) of solid sodium sulfate (\(\text{Na}_2\text{SO}_4\), molar mass \(142 \text{ g/mol}\)) in enough distilled water to make exactly \(500.0 \text{ mL}\) of solution in a volumetric flask. What is the molarity of the \(\text{Na}_2\text{SO}_4\text{(aq)}\) solution?

- **A.** \(0.200 \text{ M}\)
- **B.** \(0.400 \text{ M}\)
- **C.** \(0.600 \text{ M}\)
- **D.** \(2.00 \text{ M}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119202/*