Homework Answers
Oxidation of alcohols using CrO42- or chromate
Jones'reagent=chromic acid(H2CrO4 in acidic medium +acetone) is generally used for oxidation of alcohols to their corresponding carbonyl compounds.
Secondary alcohols are converted to ketones,but primary alcohols are oxidized to their corresponding carboxylic acids
The orange color of CrO42- ion fades to give green color of Cr3+ in the process, so the oxidation is visually detectable
1) Ethanol
color change:orange to green
condensed structural formula: CH3CH2OH
Classification: primary alcohol
oxidation product:CH3COOH (acetic acid)
2)2-propanol
color change:orange to green
condensed structural formula: CH3CH(OH)CH3
Classification: secondary alcohol
oxidation product:CH3COCH3 (acetone)
3)t-Butyl alcohol
color change: no color change
condensed structural formula: (CH3)3C-OH
Classification: tertiary alcohol
oxidation product: no rxn
4)Cyclohehanol
color change:orange to green
condensed structural formula: see in the image
Classification: seondary alcohol
oxidation product: cyclohexanone(see in the image)
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Alcohois, Aldehydes, and Ketones Report Sheet -Lab 14 C. Oxidation of Alcohols Alcobol C.I Color Change...
Alcohols, Aldehydes, and Ketones Report Sheet c. Oxidation of Alcohols C.3 C.2 Condensed Structural Formula Classifi...
Alcohols, Aldehydes, and Ketones Report Sheet c. Oxidation of Alcohols C.3 C.2 Condensed Structural Formula Classification C.1 Color Change with Cro - yes Alcohol C.4 Oxidation Product (if reaction takes place) Ethanol Aldehyde yes Primary 2-Propanol yes Secondary Ketone 2-Methyl- 2-propanol tertiary Cyclohexanol Questions and Problems Q.2 Write the product of the following reactions (if no reaction, write NR): CH2CH2CH2OH CH3CH2CH=0
Q.2 In your textbook or a chemistry handbook, look up and draw the condensed structural formulas...
Q.2 In your textbook or a chemistry handbook, look up and draw the condensed structural formulas and uses of thymol, menthol, and resorcinol. Circle the phenol functional group in each structure. If the compounds are available in lab, carefully note and describe their odors. B. Properties of Alcohols and Phenol and C. Ferric Chloride Test Odor pH FeCl, Test Ethanol 2-propanol t-Butyl alcohol Cyclohexanol Phenol Unknown Report Sheet Alcohols and Phenols D. Oxidation of Alcohols Alcohol D.4 D.1 Color Change...
Alcohols and PHUVIL Report Sheet D. Ferric Chloride Test Alcohol FeCl, Test Ethanol 2-propanol 1-Butyl alcohol Cycl...
Alcohols and PHUVIL Report Sheet D. Ferric Chloride Test Alcohol FeCl, Test Ethanol 2-propanol 1-Butyl alcohol Cyclohexanol Phenol Unknown E. Identification of Unknown Substance Unknown # Conclusions Results Summary of Testing B. Odor B. Soluble in water? B.PH C. Oxidation: CO 2 D. FeCl3 Structure Name of Unknown Page 8 of
Alcohols, Aldehydes, and Ketones Report Sheet Q.5 Indicate the test results for each of the following...
Alcohols, Aldehydes, and Ketones Report Sheet Q.5 Indicate the test results for each of the following compounds in the iodoform test and in the Benedict's test: lodoform Test Benedict's Test CH.CCH.CH CH,CH CH3CH2CCH,CH, 0 0 CH3CCH.CH Q.6 Two compounds, A and B have the formula of C3H,0. Determine their condensed structural formulas and names using the following test results. a. Compound A forms a red-orange precipitate with Benedict's reagent, but does not react with iodoform. b. Compound B forms a...
2. Name the following alcoholis. ame: Cyclpentah Structure: Name: Structure: ОН CH, CH,CH,C- OH CH Name:...
2. Name the following alcoholis. ame: Cyclpentah Structure: Name: Structure: ОН CH, CH,CH,C- OH CH Name: Name: Structure: Structure: ОН Сн, он CH, -CH-CH2-CH, CH-CH, CH3 3. Write the product of the following oxidation reactions (if no reaction, write NR). CH, OH CH3-CH-CH, CH, CH-CH, +(0) — лон +(0) - Ketone CH, OH CH3 CH, CH, CH-CH-CH-CH, +(0) -OH + (0) 11-10 Experiment 11 Alcohols and Phenols Post-Lab Questions 1. Write the structures and classifications of the following alcohols: 2-bromo-3-pentanol...
please identify the unknown and write a derivative Unknown compound 3 Clear liquid Physcial Properties Solubility...
please identify the unknown and write a derivative
Unknown compound 3 Clear liquid Physcial Properties Solubility Dissolve in ethyl ether Not dissolved in water Boiling point 77 IR spectrum Transmitance 3000 1000 2000 Wavenumber cm-1) Classification Positive test in Alkaline Iron (III) Hydroxamate test test CLASSIFICATION TESTS These tests must be done together with known AND FOLLOW PROCEDURE IN YOUR TEXT CARBOXYLIC ACIDS are detected by teating aqueous solutions with limus or pH paper. Also, disolve In NaHCO with bubbles...
Alcohols, Aldehydes, and Ketones Report Sheet c. Oxidation of Alcohols C.3 C.2 Condensed Structural Formula Classification C.1 Color Change with Cro - yes Alcohol C.4 Oxidation Product (if reaction takes place) Ethanol Aldehyde yes Primary 2-Propanol yes Secondary Ketone 2-Methyl- 2-propanol tertiary Cyclohexanol Questions and Problems Q.2 Write the product of the following reactions (if no reaction, write NR): CH2CH2CH2OH CH3CH2CH=0
Q.2 In your textbook or a chemistry handbook, look up and draw the condensed structural formulas and uses of thymol, menthol, and resorcinol. Circle the phenol functional group in each structure. If the compounds are available in lab, carefully note and describe their odors. B. Properties of Alcohols and Phenol and C. Ferric Chloride Test Odor pH FeCl, Test Ethanol 2-propanol t-Butyl alcohol Cyclohexanol Phenol Unknown Report Sheet Alcohols and Phenols D. Oxidation of Alcohols Alcohol D.4 D.1 Color Change...
Alcohols and PHUVIL Report Sheet D. Ferric Chloride Test Alcohol FeCl, Test Ethanol 2-propanol 1-Butyl alcohol Cyclohexanol Phenol Unknown E. Identification of Unknown Substance Unknown # Conclusions Results Summary of Testing B. Odor B. Soluble in water? B.PH C. Oxidation: CO 2 D. FeCl3 Structure Name of Unknown Page 8 of
Alcohols, Aldehydes, and Ketones Report Sheet Q.5 Indicate the test results for each of the following compounds in the iodoform test and in the Benedict's test: lodoform Test Benedict's Test CH.CCH.CH CH,CH CH3CH2CCH,CH, 0 0 CH3CCH.CH Q.6 Two compounds, A and B have the formula of C3H,0. Determine their condensed structural formulas and names using the following test results. a. Compound A forms a red-orange precipitate with Benedict's reagent, but does not react with iodoform. b. Compound B forms a...
2. Name the following alcoholis. ame: Cyclpentah Structure: Name: Structure: ОН CH, CH,CH,C- OH CH Name: Name: Structure: Structure: ОН Сн, он CH, -CH-CH2-CH, CH-CH, CH3 3. Write the product of the following oxidation reactions (if no reaction, write NR). CH, OH CH3-CH-CH, CH, CH-CH, +(0) — лон +(0) - Ketone CH, OH CH3 CH, CH, CH-CH-CH-CH, +(0) -OH + (0) 11-10 Experiment 11 Alcohols and Phenols Post-Lab Questions 1. Write the structures and classifications of the following alcohols: 2-bromo-3-pentanol...
please identify the unknown and write a derivative
Unknown compound 3 Clear liquid Physcial Properties Solubility Dissolve in ethyl ether Not dissolved in water Boiling point 77 IR spectrum Transmitance 3000 1000 2000 Wavenumber cm-1) Classification Positive test in Alkaline Iron (III) Hydroxamate test test CLASSIFICATION TESTS These tests must be done together with known AND FOLLOW PROCEDURE IN YOUR TEXT CARBOXYLIC ACIDS are detected by teating aqueous solutions with limus or pH paper. Also, disolve In NaHCO with bubbles...
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