Select suitable reagents to perform the following transformation (select all that apply): OH dilute H₂SO4 OH₂O □1) BH, THF; 2) H₂O₂, NaOH Conc. H₂SO4 1) Hg(OAc)₂, H₂O; 2) NaBH4 x Racemic
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- Which reagent(s) is/are needed to perform the following reaction (choose all that apply).CHOOSE ALL THAT APPLY a. CH3OH b. phosphate c. NaOH d. Cu^2+ e. K2Cr2O7 f. H2 g. PtThe name for Reaction 1 is ______ Choices: A. Acidification B. Oxidation, C. Reduction, D. None of the choices The reagent/s for REACTION 1 is/are ______ Choices: A. CH3MgBr in ether, B. HCl, C. CH3NH2, D. none of the choices3. Choose among the choices (an) example/s of (an) amphiprotic species.a. HClb. Glycine zwitterionc. H2PO4-d. Both A and Ce. Both B and C 4. Choose among the choices (an) example/s of (an) solvents that do not undergo autoprotolysis.a. H2Ob. CH3CH2OHc. CH3CNd. Both A and Be. All of the above
- 4. Compounds that have an effective depigmenting effect are…A. ascorbic acidB. kojac acidC. azelaic acidD. all answers are correctWhich is true regarding the direction of the following reaction? CH3COOH (aq) + H2PO-4 <<>>> CH3COO- + H3PO4 a) the reaction favors the reactant side b) the reaction favors the product side c) the reaction favors both reactants and products equally d) the table of acidity does not proviede enough information to answer this questionprovide major organic product in the following reactions the HCL(excess) & H+,H2O
- 8. Liquid-liquid extraction. A progressive (thought) exercise. a) Benzoic acid, C 6 H 5 CO 2 H, is insoluble in water (< 1 w/w %). A suspension of solid benzoic acid in water is treated with enough 1.0 M NaOH (aq) to react with the acid. What balanced acid-base reaction takes place? b) Judging by the products in this reaction, do you expect the benzoic acid to dissolve in the resulting aqueous phase? yes, or no, and why. c) Now, make a biphasic mixture of diethyl ether and water (see #7, above). Use a separatory funnel, as in the illustration above. Which substance is the upper layer? ______________ d) Add solid benzoic acid to these layered solvents, and mix thoroughly. Does the benzoic acid dissolve, and if so, where should it be found? ____________________ e) Then, make the pH of the aqueous phase alkaline (basic) with NaOH until the pH = 11.00. Again, mix thoroughly. Where should the benzoic acid be found now? ____________________ f) Separate the two phases carefully, placing…Ammonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in thefollowing reaction:NH3 + H+ → NH4 +NH3 freely permeates biological membranes, including thoseof lysosomes. The lysosome is a subcellular organelle witha pH of about 4.5–5.0; the pH of cytoplasm is about 7.0.What is the effect on the pH of the fluid content of lysosomes when cells are exposed to ammonia? Note: Ammonium (NH4 +) does not diffuse freely across membranes.Which reagent(s) is/are needed to perform the following reaction (choose all that apply).CHOOSE ALL THAT APPLY a. H2O b. H2 c. Pt d. NaOH e. K2Cr2O7 f. H+ g. Cu^2+
- Which of the following will produce an oxidation product with KMnO4 that is insoluble in NaOH?Benzoic acid (C6H5C02H) has Ka =6.3 x 10-5 a) What is the value of Kb for the benzoate ion (C6H5C02-)? b) What is the h30+ concentration of a O, 10 mol/dm3 solution of benzoic acid? c) What is the pH of the solution in (b) above?For 20.7 the solutions for part c and d dont seem right. Shouldn't reacting with 1 eq of H2 just take away the C=C bond and not the C=O bond. (H2 reduces C=C selectively to form a ketone according to page 738. Also the both the C=C and C=O bond should be reduced if excess H2 is used