2. A student had two unknown liquid alcohols. Unknown A gave a blue-green color with chromic acid and formed a precipitate after heating for 10 min. with Lucas reagent. Unknown B showed no color change with chromic acid but formed an immediate precipitate with Lucas reagent. To which alcohol classes do alcohols A and B belong? 3. What simple test can be used to distinguish between an alcohol and a phenol?

2. A student had two unknown liquid alcohols. Unknown A gave a blue-green color with chromic acid and formed a precipitate after heating for 10 min. with Lucas reagent. Unknown B showed no color change with chromic acid but formed an immediate precipitate with Lucas reagent. To which alcohol classes do alcohols A and B belong? 3. What simple test can be used to distinguish between an alcohol and a phenol?

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter23: Amines

Section: Chapter Questions

Problem 23.32P: Suppose you have a mixture of these three compounds. Devise a chemical procedure based on their...

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Given a mixture of pentane and pentane-1,2,3-triol, which of the following compounds can be used to dissolve the pentane (so that it can be separated from the pentane-1,2,3-triol)? Select one: O I only O II only O I and II O II, III and IV I. cyclohexane II. water III. phenol IV. ethanol Propanoic acid inhibits the growth of mold and some bacteria and is therefore used as a preservative for both animal feed and food for human consumption. HK 1. N The structural diagram above represents 2. Н Н Organic Compounds CH₂ OH COOH 3. H 4. H OH Listed in order from the compound that has the lowest boiling point to the compound that has the highest boiling point, the order would be 0 -C C The following is a structural diagram for penicillin G, an antibiotic compound with outstanding antibacterial activity. It is obtained from the liquid filtrate of molds. COOH H Penicillin G can be described as an H H CH, •C-C -N- H compound that contains CH, functional group. COOH • compound. One functional…
1. Why does 1-butanol and cyclohexanol are immiscible whereas 2-methylpropanol and ethylene glycol are miscible? 2. What is the oxidation product of methanol inside the body and why is it harmful? 3. Write your observation based on the acidic properties of each sample Sample Observation 1-butanol 2-butanol 2-methyl-propanol
0. Ph OH V IV H. Ph Ph C2, HOAC a. hv (uz) b. calor C. 12. NaOH, H20 d. 1. (Ph)2CULI, ether Conditions of the I' son. 2. Hgo* Conditions of the II NaOH, agua, calor f. EConditions of the III H2SO4. D 9. Conditions of the IV 1.PhMgBr, eter BConditions of the V h2. H20, 0 °C AICI3 1. Mg. eter
A. Why is there imidazole in the wash buffer?
have the best buffer capacity? 6) Name the following compounds: a) CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH3 b) CH3-CH₂-C C-CH₂-CH2-CH3 dd to the solution to CH3 c) CH3-CH-CH₂-CH-CH2- GH2 CH3 CH3 d) CH3-CH-C-CH-CH3
8. How many curved arrows are needed for the following reaction? H₂C NH₂ H₂C NH₂ ܒܘ H a. 4 b. 5 c. 6 d. 7
1.OML 3.4ML furan maleic anhydride
QUESTION 16 16. How do you form the following compound? By adding and mixing (Hint! look at the functional group to figure out what the structure below is.e.g. carboxylic acid etc). CH3 CH2 H3C OA Carboxylic acid + water O B. Ester + water in the presence of acid OC Ester + water in the presence of base O D. Carboxylic acid + alcohol
a) b) C) HBr CH3CH₂OOCH₂CH3 1. Hg(OAc)2, H₂O 2. NaBH4 1) BH₂ / THF 2) H₂O2 NaOH (aq) cold
Suppose you have a mixture of these three compounds. Devise a chemical procedure based on their relative acidity or basicity to separate and isolate each in pure form.
a. Determine the isoelectric point (pl) for this amino acid. b. Indicate where the amino acid is fully protonated. (Molecule A, B, C, or D?) c. Indicate which molecule that has a net charge of -1. (Molecule A, B, C, or D?) d. Does this amino acid have an R group that functions as and acid or base? 10 141 12 8 pH 6 4 2 A. COOH PK1 H₂N-CH TTT 0 CH₂ COOH pK1 2 0.5 B. çoo H3N-CH T 1 CH₂ COOH OK2 4 1.5 C. çoo H3N CH CH2 COO™ 2 pk3 pk3 9.5 2.5 D. Coo H₂N-CH CH2 3 COO™