Alumina is a polar solid phase or adsorbent. The eluting solvent diethyl ether is non-polar.
So, the more polar products will adhere to the solid phase and the less polar components will elute easily.
The order of polarity is V > III> II > IV
So, the order of elution will be IV followed by II followed by III and lastly V.
see Vitc lab 2. The chromium oxidation of compound I below yields a mixture of products...
Question1: Multiple Choice: circle the best answer (3 points) 150 mL of an aqueous analyte solution is extracted five times with 50 mL of ether (an organic solvent). The partition constant K for the analyte is 1.99. If the starting solution is 1.00 M in analyte concentration, what is the concentration of analyte remaining in the aqueous layer after the 5th extraction? a. (i) 0.07 (ii) 0.12 (iii) 0.19 (iv) 0.22 (v) 0.26 b. Reverse-phase chromatography has what type of...
Treating the compound shown below with aqueous sulphuric acid yields which of the following compounds? i. 2-pentene ii. 1-pentene iii. pentanone iv. pentanal OH iii & iv only ii & iii only i & iii only O iv only O i & ii only
Treating the compound shown below with aqueous sulphuric acid yields which of the following compounds? i. 2-pentene ii. 1-pentene iii. pentanone iv. pentanal OH ili & iv only O i & ii only Oi & iii only ii & iii only Oiv only TA
Question 30 (2 points) What are the expected major products of the reaction sequence shown below? 1. 03 2. H20 e OH O=C=0 OH II III IV V O a) I and IV Ob) II, III and IV Oc) I and II O d) 1, III and IV Question 31 (2 points) A compound with a molecular formula of C10H1202 has the following 'H NMR spectrum. Which of the following structures is consistent with this spectrum? 2 o OCH2CH2CH3 0...
Question 31 (2 points) What are the expected major products of the reaction sequence shown below? 1. O 2. H70 OH o OH 11 III IV v Oa) I and IV ob) I and II oc) I, III and IV od) II, III and IV Question 32 (2 points) Which one of the following dienophiles is least reactive in the Diels-Alder reaction? NO, phony HCO 11 IV Oa) III ob) IV Oc) 1 od) 11
Which compound matches the spectrum shown? 3H, 4H 3H,t 2H, a 8 6 PPM 2 "onora Moving to another question will save this response. Question 44 Which structure does not produce a racemic mixture when reduced with excess LAH? (A) (B) (C) ||| (D) (E) V question will save this response. Question 45 How many signals are expected in the C-NMR spectrum for the product of the reaction? 1. LAH 2. H20 Number of 13C NMR signals expected for product?...
Some mechanism questions – another look at substitution and elimination mechanisms. 2. Some mechanism questions - another look at substitution and elimination mechanisms. Cyclohexanol is treated with hydrochloric acid. A mixture of three products form OH HCI Cl i. Which product(s) is (are) the result of s ubstitution? ii. Of the products A and B which should have a higher yield? iii. The mechanism for all three products has the same step: the formation of a carbocation. Draw the carbocation...
1.) Describe the goals of a Gel Filtration Chromotography Experiment??? 2.) Explain each key theoretical principle of a Gel Filtration Chromotography, and how they help acheive the goal???. 4.) Explain the key equations used in the Gel Filtration Chromotography experiment and the terms involved in the equation???? HI im trying to prepare for a lab/report and i have some questions i could use help with please :) over all having trouble seeing how everything ties together etc :) thank you...
I need some help to answer these following questions. Thanks. 66. Which molecule is the strongest base? O-CH3 H2N Cl H2 What is the order of increasing reactivity in an SN1 reaction for these compounds? 67. Br Br Br I < 11 < 111 (C) 68. What is the starting material for this reaction? NH3, H+ NaBH3CN NH2 он COCI согн Which compound will be protonated to the greatest extent in 1.0 x 10-3 mol/L aqueous HC1? 69. NH 2...
59. Provide the major organic product in the reaction shown below. 1. NH4 2. KOH, heat 0 3. H20 60. O= 1. NH2NH2 H₃C 0 CH2 CH3 2. "OH, heat ii. What is the reactant W in the synthesis given below? a) Cyclopentanone b) Cyclopentene c) Cyclopentanol d) Bromocyclopentane e) Triphenylphosphine oxide What is the final product of this synthetic sequence? | Br2 Mg 1. C,H,CHO H Cr,04 Benzene FeCl, ether 2. H,0 acetone d) e) CHECCHS p-BrC.H.CH.C.HSCH:CHCOOH CA HECH,...