Fill up the table below for the expected results for the following tests and sample compounds. Dichromate Test DNPH Hydroxamic lodoform Lucas Tollens Ceric nitrate (Jones Test) Test acid Test Test Test Test Test 1° ROH |(Methanol) 2° ROH (2-Propanol) 3° ROH (tert-Butanol) Aldehyde (Formaldehyde) Ketone (Acetone) Ester (Ethyl acetate) Post Laboratory - Group Discussion Questions Draw the structures of methanol, 2-propanol, tert-butanol, acetone, acetaldehyde and ethyl acetate. Indicate the differences in their structures. • Write the equation of the reactions of each compound with the reagents above. Write NR if there is no reaction. • What are the principles / chemical reaction involved in each chemical test? Indicate the functional groups that correspond to the IR signals.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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  • What are the principles / chemical reaction involved in each chemical test?

  • Indicate the functional groups that correspond to the IR signals.

    (other table)

Apparatus and Reagents
Test tubes, 13 x 100
Lucas Test
Place 10 drops test compounds in separate test
tubes. Add 10 drops of Lucas reagent. Shake
vigorously and note the appearance of cloudiness
or insoluble layer.
Droppers
Lucas reagent (dissolve 27 g anhydrous ZnCl2 in 18
mL conc. HCI)
Tollens' Test
Apparatus and Reagents
Place 20 drops of freshly prepared Tollens reagent
in separate test tubes. Add 10 drops test
compounds to each test tube. Mix well and place
in boiling water bath for 5 minutes. Take note of
Test tubes, 13 x 100
Droppers
Tollens reagent (Solution A: dissolve 0.25g AgNO3
in 4.3 ml H20; Solution B: dissolve 0.3g NaOH in
4.2 mL H2O; Add conc. NH3 to solution A
dropwise until a brown precipitate is formed.
any change.
Add solution B dropwise until the solution is
clear)
Boiling Water bath
Test tubes, 13 x 100
Droppers
Ceric ammonium nitrate reagent (Dissolve 45g of
Ce(NH4)2(NO3)6 in 115 mL 2M HNO3
Ceric Nitrate Test
Place 10 drops test compounds in separate test
tubes. Add 10 drops of Ceric ammonium nitrate
reagent. Note the change in color.
Tabulation of Result
Fill up the table below for the expected results for the following tests and sample compounds.
Dichromate Test
Ceric nitrate
Hydroxamic
acid Test
DNPH
lodoform
Lucas
Tollens
(Jones Test)
Test
Test
Test
Test
Test
1° ROH
(Methanol)
2° ROH
(2-Propanol)
3° ROH
(tert-Butanol)
Aldehyde
(Formaldehyde)
Ketone
(Acetone)
Ester
(Ethyl acetate)
Post Laboratory - Group Discussion Questions
Draw the structures of methanol, 2-propanol, tert-butanol, acetone, acetaldehyde and ethyl acetate.
Indicate the differences in their structures.
Write the equation of the reactions of each compound with the reagents above. Write NR if there is
no reaction.
What are the principles / chemical reaction involved in each chemical test?
Indicate the functional groups that correspond to the IR signals.
Transcribed Image Text:Apparatus and Reagents Test tubes, 13 x 100 Lucas Test Place 10 drops test compounds in separate test tubes. Add 10 drops of Lucas reagent. Shake vigorously and note the appearance of cloudiness or insoluble layer. Droppers Lucas reagent (dissolve 27 g anhydrous ZnCl2 in 18 mL conc. HCI) Tollens' Test Apparatus and Reagents Place 20 drops of freshly prepared Tollens reagent in separate test tubes. Add 10 drops test compounds to each test tube. Mix well and place in boiling water bath for 5 minutes. Take note of Test tubes, 13 x 100 Droppers Tollens reagent (Solution A: dissolve 0.25g AgNO3 in 4.3 ml H20; Solution B: dissolve 0.3g NaOH in 4.2 mL H2O; Add conc. NH3 to solution A dropwise until a brown precipitate is formed. any change. Add solution B dropwise until the solution is clear) Boiling Water bath Test tubes, 13 x 100 Droppers Ceric ammonium nitrate reagent (Dissolve 45g of Ce(NH4)2(NO3)6 in 115 mL 2M HNO3 Ceric Nitrate Test Place 10 drops test compounds in separate test tubes. Add 10 drops of Ceric ammonium nitrate reagent. Note the change in color. Tabulation of Result Fill up the table below for the expected results for the following tests and sample compounds. Dichromate Test Ceric nitrate Hydroxamic acid Test DNPH lodoform Lucas Tollens (Jones Test) Test Test Test Test Test 1° ROH (Methanol) 2° ROH (2-Propanol) 3° ROH (tert-Butanol) Aldehyde (Formaldehyde) Ketone (Acetone) Ester (Ethyl acetate) Post Laboratory - Group Discussion Questions Draw the structures of methanol, 2-propanol, tert-butanol, acetone, acetaldehyde and ethyl acetate. Indicate the differences in their structures. Write the equation of the reactions of each compound with the reagents above. Write NR if there is no reaction. What are the principles / chemical reaction involved in each chemical test? Indicate the functional groups that correspond to the IR signals.
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