(a) Interpretation: The equation and value of Δ H o for net reaction needs to be determined. Concept introduction: According to Hess’s law, if addition of two reactions takes place to get the overall reaction, the value of Δ H o for net reaction can be calculated by taking sum of Δ H o of both reactions.
(a) Interpretation: The equation and value of Δ H o for net reaction needs to be determined. Concept introduction: According to Hess’s law, if addition of two reactions takes place to get the overall reaction, the value of Δ H o for net reaction can be calculated by taking sum of Δ H o of both reactions.
Solution Summary: The author explains Hess's law, if addition of two reactions takes place to get the overall reaction, the value of DeltaHo for net reaction can be calculated by taking
The equation and value of ΔHo for net reaction needs to be determined.
Concept introduction:
According to Hess’s law, if addition of two reactions takes place to get the overall reaction, the value of ΔHo for net reaction can be calculated by taking sum of ΔHo of both reactions.
Interpretation Introduction
(b)
Interpretation:
The arrow corresponding to the step and the one corresponding to the net reaction needs to be determined.
Concept introduction:
According to Hess’s law, if addition of two reactions takes place to get the overall reaction, the value of ΔHo for net reaction can be calculated by taking sum of ΔHo of both reactions.
Interpretation Introduction
(c)
Interpretation:
The substance represented by each energy level needs to be determined.
Concept introduction:
According to Hess’s law, if addition of two reactions takes place to get the overall reaction, the value of ΔHo for net reaction can be calculated by taking sum of ΔHo of both reactions.
Predict the major organic product(s) of the following reactions. Indicate which of the following mechanisms is in operation: SN1, SN2, E1, or E2.
(c)
(4pts)
Mechanism:
heat
(E1)
CH3OH
+
1.5pts each
_E1 _ (1pt)
Br
CH3OH
(d)
(4pts)
Mechanism:
SN1
(1pt)
(e)
(3pts)
1111 I
H
10
Ill!!
H
LDA
THF (solvent)
Mechanism: E2
(1pt)
NC
(f)
Bri!!!!!
CH3
NaCN
(3pts)
acetone
Mechanism: SN2
(1pt)
(SN1)
-OCH3
OCH3
1.5pts each
2pts for either product
1pt if incorrect
stereochemistry
H
Br
(g)
“,、
(3pts)
H
CH3OH
+21
Mechanism:
SN2
(1pt)
H
CH3
2pts
1pt if incorrect
stereochemistry
H
2pts
1pt if incorrect
stereochemistry
A mixture of butyl acrylate and 4'-chloropropiophenone has been taken for proton NMR analysis. Based on this proton NMR, determine the relative percentage of each compound in the mixture
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Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY