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Question 18 How many signals would be present in the ¹HNMR? i i 0 2 01 0 3

Question 18 How many signals would be present in the ¹HNMR? i i 0 2 01 0 3

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Question 18** How many signals would be present in the \( ^1\text{H NMR} \)? [Image of a chemical structure: ethyl acetate] - ( ) 2 - ( ) 1 - ( ) 3 **Explanation:** The chemical structure is ethyl acetate, which consists of two distinct types of hydrogens: the hydrogen atoms in the methyl group (\( \text{CH}_3 \)) and the hydrogen atoms in the methylene group (\( \text{CH}_2 \)). In \( ^1\text{H NMR} \) spectroscopy, different environments for hydrogen atoms give rise to distinct signals. Ethyl acetate has three different types of hydrogen environments: 1. The hydrogens in the \(\text{CH}_3\) group attached to the ester oxygen. 2. The hydrogens in the \(\text{CH}_2\) group. 3. The hydrogens in the \(\text{CH}_3\) group attached to the ester carbonyl. Thus, the number of signals expected in the \( ^1\text{H NMR} \) spectrum for ethyl acetate is **three**.
Transcribed Image Text:**Question 18** How many signals would be present in the \( ^1\text{H NMR} \)? [Image of a chemical structure: ethyl acetate] - ( ) 2 - ( ) 1 - ( ) 3 **Explanation:** The chemical structure is ethyl acetate, which consists of two distinct types of hydrogens: the hydrogen atoms in the methyl group (\( \text{CH}_3 \)) and the hydrogen atoms in the methylene group (\( \text{CH}_2 \)). In \( ^1\text{H NMR} \) spectroscopy, different environments for hydrogen atoms give rise to distinct signals. Ethyl acetate has three different types of hydrogen environments: 1. The hydrogens in the \(\text{CH}_3\) group attached to the ester oxygen. 2. The hydrogens in the \(\text{CH}_2\) group. 3. The hydrogens in the \(\text{CH}_3\) group attached to the ester carbonyl. Thus, the number of signals expected in the \( ^1\text{H NMR} \) spectrum for ethyl acetate is **three**.
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