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title: "A student synthesizes aspirin, \\(\\text{C}_9\\text{H}_8\\text{O}_4\\), according to the reaction shown.  \\[\\text{C}_7\\text{H}_6\\text{O}_3\\text{(s)}+\\text{C}_4\\text{H}_6\\text{O}_3\\text{(l)}\\rightarrow \\text{C}_9\\text{H}_8\\text{O}_4\\text{(s)}+\\text{C}_2\\text{H}_4\\text{O}_2\\text{(l)}\\]  The student reacts \\(1.38\\text{ g}\\) of salicylic acid, \\(\\text{C}_7\\text{H}_6\\text{O}_3\\), with excess acetic anhydride, \\(\\text{C}_4\\text{H}_6\\text{O}_3\\). The molar masses of salicylic acid and aspirin are \\(138\\text{ g/mol}\\) and \\(180\\text{ g/mol}\\), respectively. After the product is isolated and dried, the student recovers \\(1.44\\text{ g}\\) of aspirin. What is the percent yield of aspirin?"
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url: "https://nerd-notes.com/ubq/119356/"
date_modified: "2026-08-19T12:39:57+00:00"
---

# A student synthesizes aspirin, \(\text{C}_9\text{H}_8\text{O}_4\), according to the reaction shown.

\[\text{C}_7\text{H}_6\text{O}_3\text{(s)}+\text{C}_4\text{H}_6\text{O}_3\text{(l)}\rightarrow \text{C}_9\text{H}_8\text{O}_4\text{(s)}+\text{C}_2\text{H}_4\text{O}_2\text{(l)}\]

The student reacts \(1.38\text{ g}\) of salicylic acid, \(\text{C}_7\text{H}_6\text{O}_3\), with excess acetic anhydride, \(\text{C}_4\text{H}_6\text{O}_3\). The molar masses of salicylic acid and aspirin are \(138\text{ g/mol}\) and \(180\text{ g/mol}\), respectively. After the product is isolated and dried, the student recovers \(1.44\text{ g}\) of aspirin. What is the percent yield of aspirin?

A student synthesizes aspirin, \(\text{C}_9\text{H}_8\text{O}_4\), according to the reaction shown.

\[\text{C}_7\text{H}_6\text{O}_3\text{(s)}+\text{C}_4\text{H}_6\text{O}_3\text{(l)}\rightarrow \text{C}_9\text{H}_8\text{O}_4\text{(s)}+\text{C}_2\text{H}_4\text{O}_2\text{(l)}\]

The student reacts \(1.38\text{ g}\) of salicylic acid, \(\text{C}_7\text{H}_6\text{O}_3\), with excess acetic anhydride, \(\text{C}_4\text{H}_6\text{O}_3\). The molar masses of salicylic acid and aspirin are \(138\text{ g/mol}\) and \(180\text{ g/mol}\), respectively. After the product is isolated and dried, the student recovers \(1.44\text{ g}\) of aspirin. What is the percent yield of aspirin?

- **A.** \(0.800\%\)
- **B.** \(40.0\%\)
- **C.** \(76.7\%\)
- **D.** \(80.0\%\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119356/*