Interpretation: The reason behind the usage of dry apparatus and solvents when the borane-THF complex solution needs to be used should be given.
Concept introduction:Hydroboration-oxidation involves a sequence of two reactions. The hydroboration stage involves the treatment of alkene with diborane that generates alkyl borane. In second stage hydrogen peroxide in alkaline medium is used to oxidize the alkyl borane produced in step 1 that leads to the synthesis of alcohols from
Anti-Markovnikov’s Rule serves as the basis ofhydroboration. It states that the negative part of reagent must go to the carbon that has fewer alkyl substituents or more
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EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
- Explain briefly in 2 sentences andin your OWN words. 1. NHẠCNS used in the test for cobalt must be alcoholic. Why? 2. Addition of excess dimethylglyoxime in the detection of nickel ionarrow_forward2. *NOTE: Disregard procedure in module and follow this instead Iron and thiocyanate (https://www.youtube.com/watch?y=ZOYYCTVLA9E ) Guide Questions: 1. What happens when: a. Iron (III) nitrate is added? b. Potassium thiocyanate is added? C. Sodium hydroxide is added? d. solid Potassium chloride is added? 2. Explain the results on the basis of whether the forward or backward reaction is favored when: a. Iron (III) nitrate is added? b. Potassium thiocyanate is added? c. Sodium hydroxide is added? d. solid Potassium chloride is added? 3. Name and state the law involved in this procedure. 4. When is a reaction said to be reversible? 5. What is meant by chemical equilibrium?arrow_forward12) Multiple Choice Question What is the rationale in warming the nickel(II) salt solution prior to addition into the refluxing phosphine solution? To avoid bumping/superheating of the hot phosphine solution To activate the nickel(II) salt so that it becomes more reactive To eliminate moisture from the solution To saturate the nickel(II) solution To dissolve any remaining nickel(II) salt into the solutionarrow_forward
- What are the equilibrium concentrations of all copper containing species in solution containing 0.02mM copper and 0.4mM free ethylene diamine? Assume that there is an excess of ethylene diamine in the system. Also do not consider mixed ligand complexes.arrow_forwardWhat do you think is a limitation of the flame test in identifying metal ions in solution?arrow_forwardUse the systematic treatment to get the concentrations of all the species in a solution of: a.) saturated PbSO4 buffered at pH 7arrow_forward
- help asaparrow_forwardCalculate the actual yield of potassium trioxalatochromate(iii) hydratearrow_forwardSuppose you have prepared s compound which is reported in the literature to have a pale blue color. When dissolving the substance in hot solvent prior recrystallization, the resulting solution is blue. Should you use decolorizing charcoal before allowing the hot solution to cool? Explain your answer.arrow_forward
- Please don't provide handwritten solution...arrow_forwardIt is possible to prove fluoride ions after fluorouracil mineralization by: A. Destruction of the zirconium-alizarin complex B. Discoloration of iron(III) thiocyanate C. Precipitation with calcium chloride solution D. Gas evolution with characteristic odorarrow_forwardA. What is the characteristic color of ferric ions in solution? B. Why is the titration of the oxalate in the green salt with KMnO4 performed prior to carrying out the redox titration for iron content? (Why can’t you do them the other way – iron first then oxalate?) C. In a titration using 0.02000 M KMnO4 solution, the following data were obtained: Buret readings: FINAL = 15.31 mL INITIAL = 5.02 mL How many moles of KMnO4 were used?arrow_forward
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