Organic Chemistry
Organic Chemistry
6th Edition
ISBN: 9781936221349
Author: Marc Loudon, Jim Parise
Publisher: W. H. Freeman
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Chapter 20, Problem 20.41AP
Interpretation Introduction

Interpretation:

A reaction scheme for determining the fraction of 14C at the carbonyl carbon and the other fraction of 14C present elsewhere position in phenylacetic acid (PhCH2CO2H) molecule is to be stated.

Concept introduction:

Atoms of the same elements that have different masses and different number of neutrons are known as isotopes. The isotopes of carbon atom are 13C and 14C.

The reduction of an acid in the presence of a hydride like LiAlH4 and NaBH4 forms the corresponding alcohol. Among LiAlH4 and NaBH4, LiAlH4 is mostly preferred for the reduction of acids because it is strong reducing agent.

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There are 48 pairs of students in the following table. Each pair has quantitatively determined the mass of taurine in a 250 mL can of the popular energy drink marketed as “Munster” using High Performance Liquid Chromatography (HPLC). The class results are presented below:  QUESTION: Summarise and report these results including an indication of measurement uncertainty.  In both calculation samples calculate if an outlier is present, max value, number of samples, mean, standard deviation, g (suspect), g (critical) and t (critical).   Mass of Taurine (mg) Mass of Taurine (mg) (Table continued) 152.01 152.23 151.87 151.45 154.11 152.64 152.98 153.24 152.88 151.45 153.49 152.48 150.68 152.33 151.52 153.63 152.48 151.68 153.17 153.40 153.77 153.67 152.34 153.16 152.57 153.02 152.86 151.50 151.23 152.57 152.72 151.54 146.47 152.38 152.44 152.54 152.53 152.54 151.32…
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