Please can someone help with Question 12 11(a) Classify the following as primary, secondary or tertiary alcohols:i. 2-0metbuleropan-2el; tertiary alcoholii. Propanlel primary alcoholiii. Propan-2-0l: secondary alcohol(b) In the identification of propan-1al. BOpan2al and 2methvlerepan2al.these alcohols are mixed individually with acidified potassium dichromate(VI) (K2C12O7) solution. State below the product obtained from eachalcohol:i. propan-1-el it's first oxidised to an aldehyde then to a carboxylic acidii. propan:2el: a ketone is creatediii 2-methylpropan-2-ol; it won't react with the acidified potassiumdichromate5.212For further identification, the products from reactions b(i) and b(ii) above aremixed individually with Tollens reagent (Ammoniacal AGNO3). List briefly theexperimental observations:i. Reaction b(i):ii. Reaction b(ii):

✓by Reaction (i)firstly we get propanal on oxidation of Propan-1-ol,gives grey color ppt on reaction…

ing as primary, secondary or tertiary alcohols: el; tertiary alcohol nary alcohol condary alcohol n of propankal proran2:al and 2metbvleropan.2a. are mixed individually with acidified potassium dichromate solution. State below the product obtained from each irst oxidised to an aldehyde then to a carboxylic acid etone is created 2-ol- it won't react with the acidified potassium

ing as primary, secondary or tertiary alcohols: el; tertiary alcohol nary alcohol condary alcohol n of propankal proran2:al and 2metbvleropan.2a. are mixed individually with acidified potassium dichromate solution. State below the product obtained from each irst oxidised to an aldehyde then to a carboxylic acid etone is created 2-ol- it won't react with the acidified potassium

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter7: Extraction

Section: Chapter Questions

Problem 1Q

See similar textbooks

Similar questions

Naphthalene, C10H8 is insoluble in water but sublimes easily when heated. How could you separate a mixture of naphthalene and NaCl? Suggest two different methods. asap
1. Alcohols X and Y formed layers with Lucas reagent. Compound X formed brown precipitate with KMnO4 while compound Y did not. Which are the possible identities of compounds X and Y? a.tert-butanol, propanol b.isopropanol, isopentyl alcoholc. methanol, ethanold.tert-butanol, isopropanol2. Alcohols that cannot be distinguished using the Lucas test? a.isopropanol and methanol b.t-butyl alcohol and ethanol c.t-butyl alcohol and 2-methylbenzyl alcohol d.ethanol and n-propanol
Absolute ethanol (100% ethanol, with no water) cannot be obtained through simple fractionaldistillation because of the lower boiling azeotrope that forms with water. Propose a method by which onemight prepare absolute ethanol
Write the word “CORRECT” if the statement is TRUE. Ifthe statement is FALSE, write the word/s that made the statement wrong and then beside it,using a dash, -, write the word/s that will make the statement right. 25. Intramolecular hydrogen bonds reduces intermolecular hydrogen bonds, meaning, it willreduce solubility in water.26. In naming cis-cyclohexan-1,4-diol, the final -e is deleted because the next letter (d) is avowel; that is, cyclohexandiol.27. A ketone is a substance that has two organic groups bonded to the same oxygen atom.28. Ethers are compounds having the hydroxyl group bonded to a carbon atom.29. The carbon atom attached to the hydroxyl group in an alcohol is sp3 hybridized.30. Carbaldehydes have the hydroxyl functional group attached to the aromatic ring.31. A cyclic three-membered ether is named oxirane.32. An aldehyde have at least one hydrogen atom attached to the carbonyl group.33. They have the same numbers and kinds of atoms but differ in the way atoms are…
Which of the following compounds will be most soluble in toluene(C7H8)? A) ethylene glycol (HOCH2CH2OH) B) hexane (CH3CH2CH2CH2CH2CH3) C) acetone (CH3COCH3) D) trimethylamine (N(CH3)3) E) A and D are soluble in toluene.
(1a) Pure benzophenane freezes at 66.6 °C. A solution of 7.75 g of biphenyl (C12H10; molar mass = 154.2g/mol) plus 200.08 g of benzophenane froze at 59.9 °C. Calculate the Kf of benzophenane in °C*kg/mol. (b) An unknown solution with possible cations (Ag+, Hg22+, Pb2+) is treated with 6M HCl and a white precipitate forms. Hot water is added to the precipitate, and a white solid remains after filtration. The white solid is treated with aqueous NH3, and the precipitate turns grey or black. The resulting solution is treated with HNO3 and no precipitate forms. What cations can you determine to be present, absent or maybe present? Explain your reason
The generic structural formula for a 1-alkyl-3-methylimidazoliumcation is where R is a ¬CH21CH22nCH3 alkyl group. The meltingpoints of the salts that form between the 1-alkyl-3-methylimidazolium cation and the PF6- anion areas follows: R = CH2CH3 1m.p. = 60 °C2, R = CH2CH2CH31m.p. = 40 °C2, R = CH2CH2CH2CH3 1m.p. = 10 °C2, andR = CH2CH2CH2CH2CH2CH3 1m.p. = -61 °C2. Why doesthe melting point decrease as the length of alkyl groupincreases?
Assuming that either solvent is otherwise acceptable in a given instance, what advantages does ethanol have over 1-octanol as a crystallization solvent? Hexane over pentane? Water over methanol?
You are employed as a coop student at the Drug and Alcohol Testing Association of Canada (DATAC) developing analytical tests for sports doping agents. You are asked to prepare a procedure for the extraction of methylphenidate, the active compound in Ritalin, from urine samples (consider them as simple aqueous layers, you do not need to consider other components!). The goal of the procedure is to extract the methylphenidate into an organic layer which will then be evaporated, and the residue will be tested for the drug.You find that methylphenidate is highly soluble in 2-methyltetrahydrofuran, a bio-renewable solvent. Draw the structure of 2-methyltetrahydrofuran and give two reasons why it is a good solvent choice for liquid-liquid extraction.
You are employed as a coop student at the Drug and Alcohol Testing Association of Canada (DATAC) developing analytical tests for sports doping agents. You are asked to prepare a procedure for the extraction of methylphenidate, the active compound in Ritalin, from urine samples (consider them as simple aqueous layers, you do not need to consider other components!). The goal of the procedure is to extract the methylphenidate into an organic layer which will then be evaporated, and the residue will be tested for the drug.Your colleague is helping you develop the urine test. They suggest that the urine should be adjusted to a pH above 7 before extracting with the organic solvent. Why is this necessary? Support your explanation with a full arrow-pushing mechanism for the reaction that would occur if the pH was below 7. Include all formal charges, intermediates (if applicable) and products.
1. Calculate the percent by volume of acetic acid by fermentation. The volume of 6% C2H5OH is 3L. Assumptions: No volume changed during fermentation and conversion efficiency is 85%. Its overall chemical reaction facilitated by Acetobacter aceti: C2H5OH + O2 = CH3COOH + H2O
1. Concentrated HCL has a specific gravity of 1.185 and is 36.5% (w/w) in HCl. Describe how 1.0 L of 0.05 M HCl would be prepared from the concentrated Reagent