Organic Chemistry Lab Final

Front 1

T-Butyl Chloride: After the reaction why was 5% aqueous sodium carbonate added to the organic layer?

Back 1

To neutralize the acid

Front 2

T-Butyl Chloride: Why was anhydrous magnesium sulfate used?

Back 2

To dry the product before measuring the IR

Front 3

Cyclohexanone: What IR Peak is gone from the product but was present in the reactant?

Back 3

OH

Front 4

Cyclohexanone: What new IR peak would appear in the product but was absent in the reactant?

Back 4

C=O

Front 5

Cyclohexanol: How does the IR Spectrum of the starting cyclohexanone change when product cyclohexanol forms?

Back 5

There is a loss of the C=O peak and formation of the OH peak.

Front 6

Cyclohexanol: What substance is extracted into the ether layer after the reaction is over?

Back 6

Cyclohexanol

Front 7

Cyclohexanol: Why was anhydrous magnesium sulfate used?

Back 7

To dry the product

Front 8

Diels- Alder Reaction: What is the purpose of heating the dicyclopentadiene before addition of maleic anhydride?

Back 8

To prevent the cylopentadiene from dimerizing.

Front 9

Diels-Alder Reaction: What happens to the cyclopentadiene if it is allowed to stand too long?

Back 9

If left to stand, cyslopentadiene will dimerize back to dicylopentadiene.

Front 10

Methyl Nitrobenzoate: Why is sulfuric acid used?

Back 10

As a catalyst

Front 11

Methyl Nitrobenzoate: Why is the product washed with water?

Back 11

To remove acid

Front 12

Methyl Nitrobenzoate: Why is the product washed with methanol?

Back 12

To remove the more soluble ortho isomer.

Front 13

Bromination of Acetanilide: Besides bromination at the para position, what small amount of other product might form when Br2 reacts with acetanilide?

Back 13

Front 14

Bromination of Acetanilide: After the reaction, sodium bisulfite is added to react with what leftover substance?

Back 14

xs Br2

Front 15

Grignard Reaction: How will the IR spectrum of alcohol product differ from the ketone reactant?

Back 15

Noticeable OH peak and absence of C=O peak

Front 16

Grignard Reaction: The glassware and reagents must be water free. With what substance will water react resulting in an unwanted side reaction?

Back 16

Front 17

Grignard Reaction: What substance is extracted into the ether layer?

Back 17

Front 18

Why is a solvent containing a solid product often cooled before filtering to obtain the solid product?

Back 18

To allow for formation of any remaining product.

Front 19

After filtering on a Buchner funnel, why is the solid washed with a cold solvent?

Back 19

To remove impurities (i.e isomers)

Front 20

Back 20

RCO2H

Front 21

Back 21

ROH
RCHO
RCN

Front 22

Back 22

RNH2
R3N

Front 23

Back 23

RCO2H

Front 24

Back 24

Phenols

Front 25

Back 25

RNH2
R3N

Front 26

Back 26

ROH

Front 27

Back 27

Saturated Hydrocarbons

Front 28

Back 28

Round Bottom Flask

Front 29

Back 29

Y Adaptor

Front 30

Back 30

Vacuum Adaptor

Front 31

Back 31

Condenser

Front 32

Back 32

Thermometer Adaptor

Front 33

Back 33

Claisen Adaptor

Front 34

Back 34

Beaker

Front 35

Back 35

Erlenmeyer Flask

Front 36

Back 36

Filtering Funnels

Front 37

Back 37

Vacuum Flask

Front 38

Back 38

Crystallizing Dish

Front 39

Back 39

Separatory Funnel

Front 40

Back 40

Stir Rod

Front 41

Back 41

Thermometer

Front 42

Back 42

Graduated Cylinders

Front 43

Back 43

Watch Glass

Front 44

Back 44

Test Tubes

Front 45

Back 45

KMnO4

Front 46

Back 46

RCOOH

Front 47

Back 47

Loss of purple color

Front 48

Back 48

Front 49

Back 49

Front 50

Back 50

Red/Yellow ppt.

Front 51

Back 51

Front 52

Back 52

Front 53

Back 53

Silver mirror or black ppt

Front 54

Back 54

Br2/CCl4

Front 55

Back 55

Br-C-C-Br

Front 56

Back 56

Loss of red/brown color

Front 57

Back 57

Fe+3

Front 58

Back 58

Front 59

Back 59

red/blue/purple/green solution

Front 60

Back 60

Front 61

Back 61

H2NOH-HCl
________________
Fe+3

Front 62

Back 62

red-violet solution