Organic Chemistry (9th Edition)
9th Edition
ISBN: 9780321971371
Author: Leroy G. Wade, Jan W. Simek
Publisher: PEARSON
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Chapter 14.2D, Problem 14.3P
In the presence of 18-crown-6, potassium permanganate dissolves in benzene to give “purple benzene,” a useful reagent for oxidizing
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You have been sent to India to investigate the occurence of goiter disease attributed to iodine deficency. As part of of your investigation, you must make field measurements of traces of Iodide(I-) in groundwater. The procedure is to oxidize I- to I2 and convert the I2 into an intensely colored complex with the dye brilliant green in the organic solvent toluene.
a) A 3.15x10^-6 M solution of the colored complex exhibited an absorbance of 0.267 at 635nm in a 1.00cm cuvet. A blank solution made from distilled water in place of groundwater had an absorbance of 0.019. Find the molar absroptivity of the colored complex.
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A nickel schiff base complex was formed following the synthesis below:
nickel(II) acetate tetrahydrate + pyrrole-2-aldehyde was reacted with a solution of ethanol/water and refluxed at 65oC. 2M sodium hydroxide was added along with a solution of 1,3-diaminopropane in water. The solid formed was dissolved in dichloromethane and heptane was added to it. The dichloromethane was evaporated off and the product was vacuum filtered. What is the reaction mechanism for this reaction and what is the name of the end product formed? Draw the structure of the product formed.
A dual beam UV-visible spectroscopy was used to determine the levels of Fe(II) in the run-off water of a local mine using the ferrozine assay
(i) During a check of the instrument a step-like feature at 360 nm was observed in spectrum of the standard. Suggest what may give rise to this with reference to the instrument configuration and comment on how it may be remedied.
(ii) The molar absorptivity of the [Fe(Ferrozine)3]2+ complex is 27900 cm−1 M−1 at 562 nm in aqueous solution (pH 5.5). If the EU maximum contaminant level for Fe is 200 ug /L and the contract required detection limit is 100 ug/L, comment on the suitability of the assay for the detection of iron.
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Chapter 14 Solutions
Organic Chemistry (9th Edition)
Ch. 14.2C - Rank the given solvents in decreasing order of...Ch. 14.2D - Prob. 14.2PCh. 14.2D - In the presence of 18-crown-6, potassium...Ch. 14.3B - Give a common name (when possible) and a...Ch. 14.3C - Prob. 14.5PCh. 14.3C - Name the following heterocyclic ethers.Ch. 14.4 - Propose a fragmentation to account for each...Ch. 14.5 - Prob. 14.8PCh. 14.5 - Prob. 14.9PCh. 14.6 - Prob. 14.10P
Ch. 14.7 - Explain why bimolecular condensation is a poor...Ch. 14.7 - Prob. 14.12PCh. 14.7 - Prob. 14.13PCh. 14.8 - Prob. 14.14PCh. 14.8 - Prob. 14.15PCh. 14.8 - Prob. 14.16PCh. 14.10A - Prob. 14.17PCh. 14.10A - Prob. 14.18PCh. 14.10B - Prob. 14.19PCh. 14.11B - Show how you would accomplish the following...Ch. 14.11B - Prob. 14.21PCh. 14.12 - Prob. 14.22PCh. 14.12 - Prob. 14.23PCh. 14.12 - Prob. 14.24PCh. 14.13 - Prob. 14.25PCh. 14.13 - Prob. 14.26PCh. 14.14 - Prob. 14.27PCh. 14.15 - Give the expected products of the following...Ch. 14 - Write structural formulas for the following...Ch. 14 - Give common names for the following compounds. a....Ch. 14 - Give IUPAC names for the following compounds. a....Ch. 14 - Glycerol (propane-1,2,3-triol) is a viscous syrup...Ch. 14 - Prob. 14.33SPCh. 14 - Show how you would make the following ethers,...Ch. 14 - (A true story.) An inexperienced graduate student...Ch. 14 - Prob. 14.36SPCh. 14 - a. Show how you would synthesize the pure (R)...Ch. 14 - a. Predict the values of m/z and the structures of...Ch. 14 - The following reaction resembles the...Ch. 14 - Prob. 14.40SPCh. 14 - Prob. 14.41SPCh. 14 - Prob. 14.42SPCh. 14 - Give the structures of the intermediates...Ch. 14 - Prob. 14.44SPCh. 14 - Show how you would synthesize the following ethers...Ch. 14 - Prob. 14.46SPCh. 14 - Prob. 14.47SPCh. 14 - Prob. 14.48SPCh. 14 - An acid-catalyzed reaction was carried out using...Ch. 14 - Propylene oxide is a chiral molecule. Hydrolysis...Ch. 14 - Prob. 14.51SPCh. 14 - Prob. 14.52SPCh. 14 - Prob. 14.53SPCh. 14 - Prob. 14.54SPCh. 14 - In 2012, a group led by Professor Masayuki Satake...
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- Synthesis of a nickel schiff base complex: nickel(II) acetate tetrahydrate + pyrrole-2-aldehyde was reacted with a solution of ethanol/water and refluxed at 65oC. 2M sodium hydroxide was added along with a solution of 1,3-diaminopropane in water. The solid formed was dissolved in dichloromethane and heptane was added to it. The dichloromethane was evaporated off and the product was vacuum filtered. What is the reaction mechanism for this reaction and what is the name of the end product formed?arrow_forwardGive out methods of preparation for cyclobutadienee complexsarrow_forwardA student dissolved 1.50 g of solid Ni(NO3)2 in 30 mL distilled H2O and subjected it to a hot water bath for 5 minutes. After heating, a light green solution was produced which was then separated into six test tubes. Todetermine the relative stability of Ni2+ complexes, distilled H2O, 3.0 M 1,10-phenanthroline (phen), and 12 M NH3 were used as ligand sources. The observations are as follows (see the attached photo): Compute for the formation constant of [Ni(NH3)6]2+ in test tube 3 given the following equilibrium concentrations: [Ni(H2O)6 2+] = 2.5 x 10-2 M;[NH3] = 0.010 M; [Ni(NH3)6 2+] = 2.1 x 10-5 M.arrow_forward
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