1) What needs to be done to balance the equation shown? Remove H2O from the products side Remove H2O from the reactants side Add H2O to the reactants side Add H2O to the products side 2) How are the 4 alcohols related to each other? They are isotopes of each other They are constitutional isomers They are diastereomers They are enantiomers 3) How many moles of alcohol were added if alcohol 2 was used?
1) What needs to be done to balance the equation shown? Remove H2O from the products side Remove H2O from the reactants side Add H2O to the reactants side Add H2O to the products side 2) How are the 4 alcohols related to each other? They are isotopes of each other They are constitutional isomers They are diastereomers They are enantiomers 3) How many moles of alcohol were added if alcohol 2 was used?
Chapter16: Chemistry Of Benzene: Electrophilic Aromatic Substitution
Section16.SE: Something Extra
Problem 30MP: The carbocation electrophile in a Friede1-Crafts reaction can be generated by an alternate means...
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1) What needs to be done to balance the equation shown?
Remove H2O from the products side
Remove H2O from the reactants side
Add H2O to the reactants side
Add H2O to the products side
2) How are the 4 alcohols related to each other?
They are isotopes of each other
They are constitutional isomers
They are diastereomers
They are enantiomers
3) How many moles of alcohol were added if alcohol 2 was used?
4) How many molar equivalents of HBr was used with respect to alcohol 2?
Transcribed Image Text:Nucleophilic Substitutions
The following reaction was set-up as follows:
R-OH + HBr --> R-Br
Where R-OH could be one of the following possible compounds 1-4
1
1
2
3
OH
2
4
HBr (48%)
OH
3
OH
5.0 mL of the unknown alcohol was added to 15 mL of HBr (48% HBr in water) in a 150 mL Erlenmeyer flask. The reaction was covered and stirred at room temperature for
60 min. After that time, two layers could be seen in the flask. One was clear and the other was a pale yellow.
The following table has the physical properties for each of the possible alcohols and HBr. All of the alcohols are immiscible with water.
Compound
Molar mass (g/mol)
Boiling point (degC)
Melting point (degC)
28-23
136.19
202
136.19
136.19
136.19
80.91
ОН
-18
110-111
119-121
219-221
||||
Density (g/mL at 25 C)
0.973
0.975
1.001
0.973
1.49
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