Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 32, Problem 32.18QAP
The streptomycin in 500 g of a broth was determined by addition of 1.25 mg of the pure antibiotic containing 14C. The specific activity of this preparation was found to be 240 cpm/mg for a 30-min count. From the mixture, 0.112 mg of purified streptomycin was isolated which produced 675 counts in 60.0 min. Calculate the concentration in parts per million streptomycin in the sample.
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Vnk the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest bolling
point, choose 2 next to the substance with the next highest boiling point, and so on.
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Please help me find the 1/Time, Log [I^-] Log [S2O8^2-], Log(time) on the data table. With calculation steps. And the average for runs 1a-1b. Please help me thanks in advance. Will up vote!
Q1: Answer the questions for the reaction below:
..!! Br
OH
a) Predict the product(s) of the reaction.
b) Is the substrate optically active? Are the product(s) optically active as a mix?
c) Draw the curved arrow mechanism for the reaction.
d) What happens to the SN1 reaction rate in each of these instances:
1. Change the substrate to
Br
"CI
2. Change the substrate to
3. Change the solvent from 100% CH3CH2OH to 10% CH3CH2OH + 90% DMF
4. Increase the substrate concentration by 3-fold.
Chapter 32 Solutions
Principles of Instrumental Analysis
Ch. 32 - Identify X in each of the following nuclear...Ch. 32 - Prob. 32.2QAPCh. 32 - Prob. 32.3QAPCh. 32 - Prob. 32.4QAPCh. 32 - Prob. 32.5QAPCh. 32 - Prob. 32.6QAPCh. 32 - Prob. 32.7QAPCh. 32 - Prob. 32.8QAPCh. 32 - Prob. 32.9QAPCh. 32 - Prob. 32.10QAP
Ch. 32 - Prob. 32.11QAPCh. 32 - Prob. 32.12QAPCh. 32 - Prob. 32.13QAPCh. 32 - Prob. 32.14QAPCh. 32 - Prob. 32.15QAPCh. 32 - Prob. 32.16QAPCh. 32 - Prob. 32.17QAPCh. 32 - The streptomycin in 500 g of a broth was...Ch. 32 - Show, via a calculation, that the average kinetic...Ch. 32 - Prob. 32.20QAPCh. 32 - Prob. 32.21QAP
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