Pushing Electrons
4th Edition
ISBN: 9781133951889
Author: Weeks, Daniel P.
Publisher: Cengage Learning
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Chapter 3, Problem 26EQ
Interpretation Introduction
Interpretation:
The bond making and breaking in the given species is to be represented.
Concept Introduction:
Molecules also show a simultaneous bond making and breaking. This can be illustrated nicely in the familiar SN2 reaction. A negatively charged nucleophile approaches a carbon atom having a leaving group in a direction anti to the leaving group. The pushable electrons are possessed by the nucleophile and the receptor is the carbon atom. The products are a compound having a C-Nu bond and the anion of the leaving group. Thus, Nu has been substituted for L.
But Carbon need not always be the center of this type of reaction. The removal of an acidic proton from an organic compound by a base is a common occurrence.
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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10
Consider the following reaction:
CH3OH(g)
CO(g) + 2H2(g)
(Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.)
Part A
Calculate AG for this reaction at 25 °C under the following conditions:
PCH₂OH
Pco
PH2
0.815 atm
=
0.140 atm
0.170 atm
Express your answer in kilojoules to three significant figures.
Ο ΑΣΦ
AG = -150
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Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship:
AGrxn = AGrxn + RTInQ,
AGxn+RTInQ,
where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a
is the reaction quotient.
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Identify and provide a brief explanation of Gas Chromatography (GC) within the context of chemical analysis of food. Incorporate the specific application name, provide a concise overview of sample preparation methods, outline instrumental parameters and conditions ultilized, and summarise the outcomes and findings achieved through this analytical approach.
Identify and provide a concise explanation of the concept of signal-to-noise ratio (SNR) in the context of chemical analysis. Provide specific examples.
Chapter 3 Solutions
Pushing Electrons
Ch. 3 - Prob. 1EQCh. 3 - Prob. 2EQCh. 3 - Prob. 3EQCh. 3 - Prob. 4EQCh. 3 - Prob. 5EQCh. 3 - Prob. 6EQCh. 3 - Here are some exercises in sigma bond breaking....Ch. 3 - Prob. 8EQCh. 3 - Prob. 9EQCh. 3 - Prob. 10EQ
Ch. 3 - Prob. 11EQCh. 3 - Prob. 12EQCh. 3 - Prob. 13EQCh. 3 - Prob. 14EQCh. 3 - Prob. 15EQCh. 3 - Prob. 16EQCh. 3 - Prob. 17EQCh. 3 - Prob. 18EQCh. 3 - Prob. 19EQCh. 3 - Prob. 20EQCh. 3 - Prob. 21EQCh. 3 - Prob. 22EQCh. 3 - Prob. 23EQCh. 3 - Prob. 24EQCh. 3 - Prob. 25EQCh. 3 - Prob. 26EQCh. 3 - Prob. 27EQCh. 3 - Prob. 28EQCh. 3 - Prob. 29EQCh. 3 - Prob. 30EQCh. 3 - The reaction just described is reversible....Ch. 3 - Prob. 32EQCh. 3 - Prob. 59EQ
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