LL ORG CHEM
6th Edition
ISBN: 9781264840083
Author: SMITH
Publisher: MCG
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Chapter 21, Problem 44P
Devise a synthesis of valproic acid
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During a(n) ________ process, energy is transferred from the system to the surroundings.
exothermic
endothermic
thermodynamic
thermochemical
physical
Use the following information to determine the enthalpy for the reaction shown below.
→
S(s) + O2(g) SO2(9)
ΔΗ Π
?
Reference reactions:
S(s) + O2(g)
SO3(9)
2SO2(g) + O2(g) → 2SO3(g)
AHxn
=
-395kJ
AHrxn
= ―
-198kJ
Q1. (a) Draw equations for homolytic and heterolytic cleavages of the N-H bond in NH3. Use
curved arrows to show the electron movement.
(b) Draw equations for homolytic and heterolytic cleavages of the N-H bond in NH4*. Use
curved arrows to show the electron movement.
Chapter 21 Solutions
LL ORG CHEM
Ch. 21.2 - Problem 23.1 Draw the enol or keto tautomer(s) of...Ch. 21.2 - Problem 23.3 When phenylacetaldehyde is dissolved...Ch. 21.3 - Prob. 5PCh. 21.3 - Problem 23.5 Which bonds in the following...Ch. 21.3 - Prob. 7PCh. 21.3 - Prob. 8PCh. 21.3 - Prob. 9PCh. 21.4 - Prob. 10PCh. 21.5 - Prob. 11PCh. 21.7 - Problem 23.11 Draw the products of each...
Ch. 21.7 - Problem 23.12 Draw the products of each reaction....Ch. 21.7 - Prob. 14PCh. 21.7 - Prob. 15PCh. 21.8 - Prob. 16PCh. 21.8 - Prob. 17PCh. 21.8 - Prob. 18PCh. 21.8 - Problem 23.18 How can pentan-2-one be converted...Ch. 21.8 - Problem 23.19 Identify A, B, and C, intermediates...Ch. 21.9 - Problem 23.20 Which of the following compounds...Ch. 21.9 - Problem 23.21 Draw the products of each...Ch. 21.9 - Prob. 23PCh. 21.9 - Prob. 24PCh. 21.9 - Prob. 25PCh. 21.10 - Prob. 26PCh. 21.10 - Prob. 27PCh. 21.10 - Prob. 28PCh. 21.10 - Prob. 29PCh. 21 - 23.29 Draw enol tautomer(s) for each compound....Ch. 21 - 22.30 The cis ketone A is isomerized to a trans...Ch. 21 - 23.31 Draw enol tautomer(s) for each compound.
...Ch. 21 - Prob. 33PCh. 21 - Prob. 34PCh. 21 - 23.35 Rank the labeled protons in each compound in...Ch. 21 - Prob. 36PCh. 21 - Prob. 37PCh. 21 - 23.38 Acyclovir is an effective antiviral agent...Ch. 21 - 23.39 Explain why forms two different alkylation...Ch. 21 - Prob. 40PCh. 21 - 23.42 Draw a stepwise mechanism for the following...Ch. 21 - Prob. 42PCh. 21 - Prob. 43PCh. 21 - 23.45 Devise a synthesis of valproic acid , a...Ch. 21 - Prob. 57PCh. 21 - 23.57 Draw a stepwise mechanism showing how two...Ch. 21 - 23.58 Draw a stepwise mechanism for the following...Ch. 21 - Prob. 65PCh. 21 - 23.66 Synthesize (Z)-hept-5-en-2-one from ethyl...
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