AP Chemistry
4.5 Stoichiometry
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?
\[\text{C}_7\text{H}_6\text{O}_3\text{(s)}+\text{C}_4\text{H}_6\text{O}_3\text{(l)}\rightarrow \text{C}_9\text{H}_8\text{O}_4\text{(s)}+\text{C}_2\text{H}_4\text{O}_2\text{(l)}\]
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?
Similar Questions
Tools for a 5
AP aligned mock tests to help you get a 5.
With grading, adaptive explanations, and more.
Find a Quiz
Find, solve, and grade every AP FRQ ever.
Find an FRQ
Stuck on AP Chemistry? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Find a Tutor
Learn AP Physics from scratch, quickly. This is the only course you'll need for the year.
A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee.
Explore the Course