(a) Interpretation: The given solvent favors S N 1 or S N 2 reaction is to be identified. Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, S N 1 and S N 2 . In S N 1 mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack on that carbocation. However in S N 2 mechanism, removal of halide and attack of nucleophile takes place simultaneously. The polar protic solvent favors S N 1 reaction whereas polar aprotic solvent favors S N 2 reaction.
(a) Interpretation: The given solvent favors S N 1 or S N 2 reaction is to be identified. Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, S N 1 and S N 2 . In S N 1 mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack on that carbocation. However in S N 2 mechanism, removal of halide and attack of nucleophile takes place simultaneously. The polar protic solvent favors S N 1 reaction whereas polar aprotic solvent favors S N 2 reaction.
Solution Summary: The author explains that the polar protic solvent favors S_
Definition Definition Solvents that are chemically polar in nature and are not capable of hydrogen bonding. Some commonly used polar aprotic solvents are acetone, DMF, acetonitrile, and DMSO.
Chapter 7, Problem 7.36P
Interpretation Introduction
(a)
Interpretation: The given solvent favors SN1 or SN2 reaction is to be identified.
Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, SN1 and SN2. In SN1 mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack on that carbocation. However in SN2 mechanism, removal of halide and attack of nucleophile takes place simultaneously. The polar protic solvent favors SN1 reaction whereas polar aprotic solvent favors SN2 reaction.
Interpretation Introduction
(b)
Interpretation: The given solvent favors SN1 or SN2 reaction is to be identified.
Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, SN1 and SN2. In SN1 mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack on that carbocation. However in SN2 mechanism, removal of halide and attack of nucleophile takes place simultaneously. The polar protic solvent favors SN1 reaction whereas polar aprotic solvent favors SN2 reaction.
Interpretation Introduction
(c)
Interpretation: The given solvent favors SN1 or SN2 reaction is to be identified.
Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, SN1 and SN2. In SN1 mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack on that carbocation. However in SN2 mechanism, removal of halide and attack of nucleophile takes place simultaneously. The polar protic solvent favors SN1 reaction whereas polar aprotic solvent favors SN2 reaction.
Interpretation Introduction
(d)
Interpretation: The given solvent favors SN1 or SN2 reaction is to be identified.
Concept introduction: Nucleophilic substitution reaction takes place by two mechanisms, SN1 and SN2. In SN1 mechanism, formation of carbocation takes place by removal of halide and then nucleophile attack on that carbocation. However in SN2 mechanism, removal of halide and attack of nucleophile takes place simultaneously. The polar protic solvent favors SN1 reaction whereas polar aprotic solvent favors SN2 reaction.
b) Certain cyclic compounds are known to be conformationally similar to carbohydrates, although they are not
themselves carbohydrates. One example is Compound C shown below, which could be imagined as adopting
four possible conformations. In reality, however, only one of these is particularly stable. Circle the conformation
you expect to be the most stable, and provide an explanation to justify your choice. For your explanation to be
both convincing and correct, it must contain not only words, but also "cartoon" orbital drawings contrasting the
four structures.
Compound C
Possible conformations (circle one):
Дет
Lab Data
The distance entered is out of the expected range.
Check your calculations and conversion factors.
Verify your distance. Will the gas cloud be closer to the cotton ball with HCI or NH3?
Did you report your data to the correct number of significant figures?
- X
Experimental Set-up
HCI-NH3
NH3-HCI
Longer Tube
Time elapsed (min)
5 (exact)
5 (exact)
Distance between cotton balls (cm)
24.30
24.40
Distance to cloud (cm)
9.70
14.16
Distance traveled by HCI (cm)
9.70
9.80
Distance traveled by NH3 (cm)
14.60
14.50
Diffusion rate of HCI (cm/hr)
116
118
Diffusion rate of NH3 (cm/hr)
175.2
175.2
How to measure distance and calculate rate
For the titration of a divalent metal ion (M2+) with EDTA, the stoichiometry of the reaction is typically:
1:1 (one mole of EDTA per mole of metal ion)
2:1 (two moles of EDTA per mole of metal ion)
1:2 (one mole of EDTA per two moles of metal ion)
None of the above