Organic Chemistry
11th Edition
ISBN: 9781118133576
Author: T. W. Graham Solomons, Craig Fryhle
Publisher: Wiley, John & Sons, Incorporated
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Textbook Question
Chapter 3, Problem 8Q
The pKa of CH3NH3+ equals 10.6; the pKa of (CH3)2NH2+ equals 10.7. Which is the stronger base, CH3NH2 or (CH3)2NH?
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How many signals do you expect in the H NMR spectrum for this molecule?
Br Br
Write the answer below.
Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H
atoms that would contribute to the same signal as the H already highlighted red
Note for advanced students: In this question, any multiplet is counted as one signal.
1
Number of signals in the 'H NMR spectrum.
For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to
the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
Check
For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute
to the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
O
✓
No additional Hs to color in top
molecule
ง
No additional Hs to color in bottom…
in the kinetics experiment, what were the values calculated? Select all that apply.a) equilibrium constantb) pHc) order of reactiond) rate contstant
Chapter 3 Solutions
Organic Chemistry
Ch. 3 - Prob. 1PPCh. 3 - PRACTICE PROBLEM 3.2
Write equations showing the...Ch. 3 - PRACTICE PROBLEM 3.3 Which of the following are...Ch. 3 - Prob. 4PPCh. 3 - PRACTICE PROBLEM 3.5 Formic acid (HCO2H) has...Ch. 3 - Prob. 6PPCh. 3 - Prob. 7PPCh. 3 - Prob. 8PPCh. 3 - PRACTICE PROBLEM 3.9 Predict the outcome of the...Ch. 3 - Prob. 10PP
Ch. 3 - Prob. 11PPCh. 3 - Prob. 12PPCh. 3 - Prob. 13PPCh. 3 - Prob. 14PPCh. 3 - Prob. 15PPCh. 3 - Prob. 16PPCh. 3 - Prob. 17PPCh. 3 - What is the conjugate base of each of the...Ch. 3 - List the bases you gave as answers to Problem 3.20...Ch. 3 - 3.22 What is the conjugate acid of each of the...Ch. 3 - List the acids you gave as answers to Problem 3.22...Ch. 3 - Designate the Lewis acid and Lewis base in each of...Ch. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Write an equation, using the curved-arrow...Ch. 3 - When methyl alcohol is treated with NaH, the...Ch. 3 - 3.30 What reaction will take place if ethyl...Ch. 3 - 3.31 (a) The of formic acid. What is the? (b)...Ch. 3 - Acid HA has pKa=20; acid HB has pKa=10. (a) Which...Ch. 3 - Prob. 30PCh. 3 - 3.34 (a) Arrange the following compounds in order...Ch. 3 - 3.35 Arrange the following compounds in order of...Ch. 3 - 3.36 Arrange the following in order of increasing...Ch. 3 - Prob. 34PCh. 3 - 3.38 Supply the curved arrows necessary for the...Ch. 3 - Glycine is an amino acid that can be obtained from...Ch. 3 - 3.40 Malonic acid, , is a diprotic acid. The for...Ch. 3 - 3.41 The free-energy change, , for the ionization...Ch. 3 - 3.42 At the enthalpy change, , for the ionization...Ch. 3 - The compound at right has (for obvious reasons)...Ch. 3 - 3.44.
(a) Given the above sequence of...Ch. 3 - Prob. 42PCh. 3 - Prob. 43PCh. 3 - 3.47 As noted in Table 3.1, the of acetone, , is...Ch. 3 - Formamide (HCONH2) has a pKa of approximately 25....Ch. 3 - List all the chemical species likely to be present...Ch. 3 - Prob. 2LGPCh. 3 - Prob. 3LGPCh. 3 - Prob. 4LGPCh. 3 - Prob. 1QCh. 3 - Which of the following is the strongest base? (a)...Ch. 3 - Prob. 3QCh. 3 - Prob. 4QCh. 3 - Prob. 5QCh. 3 - Which would be the weakest base? (a) CH3CO2Na (b)...Ch. 3 - What acid-base reaction (if any) would occur when...Ch. 3 - The pKa of CH3NH3+ equals 10.6; the pKa of...Ch. 3 - 3.9 Supply the missing reagents.
Ch. 3 - 3.10 Supply the missing intermediates and...
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