Robinson Annulation Practice Problems: Fill in the missing intermediates, products or starting materials for the following Robinson Annulations. A . B C KOH, 1. EtOH 2. i Michael Adduct OMe KOH, EtOH KOH, EtOH Aldol Condensation Michael Adduct Aldol Condensation

Q: Question 14 What is the [H₂O) in a 2.50 M HCIO solution? Hypochlorous acid, HCIO, is a weak acid…

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Q: a the following it more than I step synthesis for besign Number separate steps it required. 18 → 11…

A: First of all we have to take grignard reagent for nucleophilic attack on aldehyde.

Q: 8) OH me H HCI, H₂O h How many stereoisomers are possible for this cyclic hemiacetal? OH

A: Since, Stereo isomers are those whose molecular formula same but rotation around plane polarised…

Q: 9. Propose an electron-pushing mechanism for the following reaction. OCH 3 H*, H₂O heating grat CH3O…

A: In this reaction, we need to proposed an electron-pushing mechanism.  Acid-water reagent is used to…

Q: 8. For each transformation below, (a) Label the newly formed functional group in the product. (b)…

A: #8: #(a): A substituted product is formed through the inversion of configuration.  The substituted…

Q: Draw the structure of the principal organic product in the blank box. Indicate stereochemistry where…

A: a).  HBr addition to an unsymmetrical alkene in the presence of a peroxide goes via the generation…

Q: 2. For each of the following reactions or series of reactions, indicate the starting material,…

A: These are addition reactions and chlorination reactions.

Q: Calculate the standard free energy change for the following reactions using the standard cell…

A: We need to divide the given reactions into two half-cell reactions and use the Standard reduction…

Q: Calculate the cell potential for the following reaction that takes place in an electrochemical cell…

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Q: From what aldehyde or ketone could each of the following be prepared by reduction with NaBH4 or…

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Q: In the experiment, the TLC plate was submerged in toluene ethylacetate and had spots of cinnamon…

A: Thin layer chromatography is used to know how many components are present in the mixture .To know…

Q: What is the correct IUPAC name of the following compound? Problem viewing the image. Click Preview…

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Q: According to the graph below, The ratio for One Metal is to how many LIGAND? ( Write a whole number)…

A: The meet-point of the tangents drawn in the given spectrophotometric data meets the x-axis at 0.75.…

Q: 1: Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) → →…

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Q: QUESTION TWO Order the following compounds in terms of their nucleophilic reactivity, you need to…

A: Nucleophilicity is the capability of the any species to attack on the electrophilicity.

Q: 54. A chemist wanted to make the ethyl ester of 2-formylbenzoic acid using the reagents listed…

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Q: What is the reason why Boric Acid acts as a very weak monobasic acid?

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Q: molecules O CG-FID O GC-MS O LC-MS O IC-MS O IC-EC analysis

A: LC -MS is the best chromatography instrument for analysis of soluble protien molecules.

Q: Consider the following galvanic cells. Diagram I 14 1.0M Au³+ 1.0 M Cu 1.0 M Cu2+ gº Au- chemPad XX…

A: A question based on electrochemical cell that is to be accomplished.

Q: Ethanol (C₂H5OH) meits at-114 °C and boils at 78°C. The enthalpy of fusion of ethanol is 5.02…

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Q: 54. A chemist wanted to make the ethyl ester of 2-formylbenzoic acid using the reagents listed…

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Q: M Mon Aug 8 то 10. Propose a mechanism for the following reactions. CH3O CH3OCH₂ CH3 + CI™

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Q: 1. Classify the following amino acids as nonpolar, polar neutral, polar acidic, or polar basic. CH³…

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Q: A solution contains 5.51x10-3 M silver acetate and 5.89x10-3 M barium nitrate. Solid potassium…

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Q: i) 1) -B-H 2 2) H₂O₂, H₂O

A: Alkynes undergo hydroboration reaction to form an enol which tautomerizes to form a Carbonyl…

Q: 2. For the reaction, 5 3+ it was found out that at a particular instant, Mn²+ (a 2+ (aq) + MnO4 (aq)…

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Q: Propose reaction mechanisms between benzoyl chloride with the following reagents: a) H₂O, pyridine…

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Q: a. (i) Starting from K2₂[PtC14], plan synthetic routes to the two complexes A and B shown below,…

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Q: 12. A gold initially at 62.9°C is put into 120g of water at 25.8°C in a container. A mixture at…

A: T1 gold = 62.9 ° C   mass water = 120 g   T1 water = 25.8 ° C   T2 gold = T2 water = 26.3° C…

Q: e the pH of each solution given the following. Part C [OH-]=7 x 10-2 M Express your answer using one…

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Q: What is the advantages, disadvantages and improvements of the Ultra high pressure liquid…

A: A question based on analytical separation that is to be accomplished.

Q: What type of equation is ZnCo3

A: We have to tell the type of equation of ZnCO3.

Q: (a) (b) (c) (d) O O CI OCH3 1) NaBH4 2) acid 1) LIAI[OC(CH3)3]3H 2) acid 1) LIAIH4 2) acid 1) LIAIH4…

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Q: As2O3 +212 + 2H₂O A$2O5 + 4H1 Using this equation show how you would prepare 750 mls of a 0.1M As2O3…

A: A question based on concentration terms that is to be accomplished.

Q: Given the following equation: 2C4H10(g)+13O2(g)→8CO2(g)+10H2O(g)2C4H10(g)+13O2(g)→8CO2(g)+10H2O(g)…

A: The balanced chemical equation for the combustion of C4H10(g) is: 2C4H10(g) + 13O2(g) → 8CO2(g) +…

Q: 4. Write out the 1° structure for the following polypeptide: Ο Η ОН H₂N-CH-C-N-CH-C-N-CH-COO T CH-OH…

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Q: 6. Draw the major product expected for the following reactions: = H₂ Lindlar's Catalyst 1 equivalent…

A: Since alkynes having two pi bonds they readily undergo addition reaction with electrophile.

Q: One origin of SO3 is the combustion of sulfur, which is present in small quantities in coal. S (5) +…

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Q: Use a sheet of paper to answer the following question. Take a picture of your answers and attach to…

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Q: * The FTIR spectra below is probably... * | 100 % transmittance 80 80 95 20 Image adapted from…

A: The IR spectrum shows the characteristic peaks corresponding to the functional group present in the…

Q: In the following synthesis, there are 5 steps that must be done in the correct order (i.e. Step #1,…

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Q: Provide a synthesis for the following reaction. If more than one step is required be sure to number…

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Q: A student performs the Electrochemistry, and obtains the following data: [Cu²+], M Potential, V 0.1…

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Q: 4 A 25.0 mL portion of 0.020 M aqueous sodium sulfate is mixed with a 50.0 mL portion of 0.010 M…

A: Given,  The molarity of aqueous sodium sulfate = 0.020 M.  Volume of sodium sulfate= 25.0 mL The…

Q: The reaction: Al(s) + Fe₂O3(s) → Fe(s) + Al₂O3(s) has AH = -847.6 kJ and AS = -41.3 J/K at 25 °C.…

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Q: 49. Identify structures A and B in the following reaction sequence. D 1) 0₂ 2) DMS A NaOH H₂O B…

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Q: provide the correct balanced equation to represent the reaction described. A sample of solid…

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,

Q: In what situation will the Standard-Addition method be an appropriate calibration approach?

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Q: The wavelength of light required to cause the fundamental transition for the CO molecule is 4.607…

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Q: Consider a solution of 1.34×10-3 M hydrochloric acid. What would be the hydrogen ion concentration…

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Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.