11.5 10.5 9.5 8.5 7.5 6.5 5.5 4.5 3.5 2.5 1.5 0.5 -0.5 -1.5 f1 (ppm) 1.00-1 0.99-1 - 7.3 CDC13 1,3,5- trimethoxybezene -6.1 3.8 (TMS)3SiOH ― 1.6 H2O 0.2
11.5 10.5 9.5 8.5 7.5 6.5 5.5 4.5 3.5 2.5 1.5 0.5 -0.5 -1.5 f1 (ppm) 1.00-1 0.99-1 - 7.3 CDC13 1,3,5- trimethoxybezene -6.1 3.8 (TMS)3SiOH ― 1.6 H2O 0.2
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter10: Fuels, Organic Chemicals, And Polymers
Section: Chapter Questions
Problem 119QRT
Related questions
Question
The purity of (Me3Si)3SiOH, mol wt 264.66, was estimated by qNMR using 1,3,5-trimethoxybenzene of 96% purity, mol wt 168.08, as an internal standard.
The spectrum shown below was obtained using 8.9 mg of (Me3Si)3SiOH and 15.4 mg of 1,3,5-trimethoxybenzene. What is the purity of the (Me3Si)3SiOH?
[Me3Si = trimethylsilyl = TMS]
Transcribed Image Text:11.5
10.5
9.5
8.5
7.5
6.5
5.5
4.5
3.5
2.5
1.5
0.5
-0.5
-1.5
f1 (ppm)
1.00-1
0.99-1
- 7.3 CDC13
1,3,5-
trimethoxybezene
-6.1
3.8
(TMS)3SiOH
― 1.6 H2O
0.2
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