what are the principle chemical reaction involved in each test?

Curren'S Math For Meds: Dosages & Sol
11th Edition
ISBN:9781305143531
Author:CURREN
Publisher:CURREN
Chapter11: Measuring Insulin Dosages
Section: Chapter Questions
Problem 5.1P
icon
Related questions
icon
Concept explainers
Question
what are the principle chemical reaction involved in each test?
Apparatus and Reagents
Test tubes, 13 x 100
Droppers
Lucas reagent (dissolve 27 g anhydrous ZnCl2 in 18
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.
ml conc. HCI)
Tollens' Test
Apparatus and Reagents
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 H20; Add conc. NH3 to solution A
dropwise until a brown precipitate is formed.
Add solution B dropwise until the solution is
clear)
Boiling Water bath
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
any change.
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.
Test tubes, 13 x 100
Droppers
Ceric ammonium nitrate reagent (Dissolve 45g of
Ce(NHa)2(NO3)6 in 115 mL 2M HNO3
Tabulation of Result
Fill up the table below for the expected results for the following tests and sample compounds.
Tollens
Dichromate Test
Hydroxamic
acid Test
DNPH
lodoform
Lucas
Ceric nitrate
(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 abov
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 Droppers Lucas reagent (dissolve 27 g anhydrous ZnCl2 in 18 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. ml conc. HCI) Tollens' Test Apparatus and Reagents 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 H20; Add conc. NH3 to solution A dropwise until a brown precipitate is formed. Add solution B dropwise until the solution is clear) Boiling Water bath 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 any change. 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. Test tubes, 13 x 100 Droppers Ceric ammonium nitrate reagent (Dissolve 45g of Ce(NHa)2(NO3)6 in 115 mL 2M HNO3 Tabulation of Result Fill up the table below for the expected results for the following tests and sample compounds. Tollens Dichromate Test Hydroxamic acid Test DNPH lodoform Lucas Ceric nitrate (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 abov 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.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Proteins
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Curren'S Math For Meds: Dosages & Sol
Curren'S Math For Meds: Dosages & Sol
Nursing
ISBN:
9781305143531
Author:
CURREN
Publisher:
Cengage