Introduction To General, Organic, And Biochemistry
12th Edition
ISBN: 9781337571357
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 15, Problem 14P
16-19 2-Me thy 1 propane (bp -12°C), 2-propanol (bp 82°C), and 2-propanamine (bp 32°C) all have approximately the same molecular weight, yet their boiling points are quite different. Explain the reason for these differences.
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(a) The following synthesis of the molecule shown in the circle has a major problem. What is this problem? (2
pts)
1) HBr
(no peroxides)
2) H-
NaNH2
Br
3) NaNH,
4) CH3Br
5) H2, Pd
(b) Starting with the molecule shown below and any other materials with two carbons or less, write out an
alternate synthesis of the circled molecule. More than one step is needed. Indicate the reagent(s) and the major
product in all the steps in your synthesis. (5 pts)
2024 Fall Term (1) Organic Chemistry 1 (Lec)
CHEM 22204 02[6386] (Hunter College)
(c) Using the same starting material as in part (b) and any other materials win two carpons or less, write out
syntheses of the circled molecules shown below. More than one step is needed in each case. Indicate the
reagent(s) and the major product in all the steps in your synthesis. You may use reactions and products from
your synthesis in part (b). (5 pts)
alt
ons for
Free Response Questions
FRQ 1:
0/5
To spectrophotometrically determine the mass percent of cobalt in an ore containing cobalt and
some inert materials, solutions with known [Co?) are prepared and absorbance of each of the
solutions is measured at the wavelength of optimum absorbance. The data are used to create a
calibration plot, shown below.
0.90-
0.80-
0.70
0.60
0.50
0.40-
0.30
0.20-
0.10-
0.00-
0.005
0.010
Concentration (M)
0.015
A 0.630 g sample of the ore is completely dissolved in concentrated HNO3(aq). The mixture is diluted
with water to a final volume of 50.00 ml. Assume that all the cobalt in the ore sample is converted to
Co2+(aq).
a. What is the [Co2] in the solution if the absorbance of a sample of the solution is 0.74?
13
✗
b. Calculate the number of moles of Co2+(aq) in the 50.00 mL solution.
0.008 mols Co
Please correct answer and don't used hand raiting
Chapter 15 Solutions
Introduction To General, Organic, And Biochemistry
Ch. 15.1 - Prob. 15.1QCCh. 15.2 - Problem 16-2 Write a structural formula for each...Ch. 15.2 - Prob. 15.3QCCh. 15.3 - Problem 16-4 Select the stronger base from each...Ch. 15.3 - Prob. 15.5QCCh. 15 - 16-6 Answer true or false. te/7-Butylamine is a 3°...Ch. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - 16-9 In what way are pyridine and pyrimidine...Ch. 15 - Prob. 5P
Ch. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - 16-13 Classify each amino group as primary,...Ch. 15 - Prob. 9PCh. 15 - 16-15 There are eight primary amines with the...Ch. 15 - Prob. 11PCh. 15 - 16-17 Propylamine (bp 48°C), ethylmethylamine (bp...Ch. 15 - 16-18 Account for the fact that 1-butanamine (bp...Ch. 15 - 16-19 2-Me thy 1 propane (bp -12°C), 2-propanol...Ch. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - 16-26 The p/fb of amphetamine is approximately 3.2...Ch. 15 - 16-27 Guanidine, p/Ca 13.6, is a very strong base,...Ch. 15 - 16-28 Following is the structural formula of...Ch. 15 - Prob. 24PCh. 15 - Prob. 25PCh. 15 - Prob. 26PCh. 15 - 16*32 Many tumors of the breast are correlated...Ch. 15 - Prob. 28PCh. 15 - Prob. 29PCh. 15 - Prob. 30PCh. 15 - (Chemical Connections 15B ) Identify all...Ch. 15 - Prob. 32PCh. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Prob. 36PCh. 15 - (Chemical Connections 15D ) Suppose you saw this...Ch. 15 - Prob. 38PCh. 15 - Prob. 39PCh. 15 - Prob. 40PCh. 15 - 16-46 Arrange these three compounds in order of...Ch. 15 - Prob. 42PCh. 15 - Prob. 43PCh. 15 - Prob. 44PCh. 15 - Prob. 45PCh. 15 - Prob. 46PCh. 15 - Prob. 47PCh. 15 - Prob. 48PCh. 15 - 16-54 Several poisonous plants, including Atropa...Ch. 15 - Prob. 50PCh. 15 - Prob. 51PCh. 15 - Prob. 52PCh. 15 - 16-58 Following is a structural formula of...Ch. 15 - Prob. 54P
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