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
An aqueous solution of propanone (acetone, 1) of total volume 0.120 mL was analysed by quantitative 1H NMR, using the CH protons of (E)-butenedioic acid (fumaric acid, 2) to provide an internal standard. A stock solution of 2 with concentration = 10.00 x 10-3 mol L-1 was prepared by dissolving pure solid 2 in deuterium oxide (D2O). The solution of 1 was mixed with a 0.400 mL aliquot of the stock solution of 2 and the 400 MHz 1H NMR spectrum of the mixture was recorded (see Table 2 below).
![2.22
4.80
singlet
broad singlet
4.50
6.53
singlet
not determined
1.00
CH 3 groups of 1
OH from HOD
CH groups of 2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F805775a5-e880-4d3d-ba04-2a4244a2fa09%2Ffef6183f-0790-44b3-b189-1a814f533954%2Fprnljnf_processed.png&w=3840&q=75)
Transcribed Image Text:2.22
4.80
singlet
broad singlet
4.50
6.53
singlet
not determined
1.00
CH 3 groups of 1
OH from HOD
CH groups of 2
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