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- Write an equation for the reaction of chloroacetic acid (Ka=1.5103) with trimethylamine (Kb=5.9105) . Calculate the equilibrium constant for the reaction. If 0.10 M solutions of these two species are mixed, what will be their concentrations at equilibrium?a) If the pH value of an aqueous solution of trimethylamine [(CH3)3N] is 10.75, what should be the molarity of this solution? (CH3)3N + H2O ↔ (CH3)3NH+ + OH-, Kb = 6,3 × 10-5 b) What will be the pH of the solution prepared by dissolving 8.35 g of aniline hydrochloride (C6H5NH3+Cl-) in 750 mL of 0.215 M aniline (C6H5NH2)? Is this solution an effective buffer? Explain (Kb = 7,4 × 10-10 for aniline, C: 12.0 g / mol, H: 1.0 g / mol, N: 14.0 g / mol, Cl: 35.4 g / mol) .6. (Chapter 15-Q37) Indole is an aromatic heterocyclic that has a benzene ring fused to a pyrrole ring. Answer the following questions. Indole 6(a) What is the hybridization of N in this molecule? = 6(b) How many pi electrons N contributes to the ring? = 6() Which orbitals contribute to form a sigma bond between N and H in this molecule? = 6(c) What is the electronic relationship of Indole to naphthalene? Give the answer by comparing number of rings and number of pi electrons in both compounds, write x rings, y pi electrons=|
- Explain the geometry,hybridization and bond angle of carbon atom of a carboxylic acid?The acid-base reaction between 2-methyl-2-butene and HI can, in principle, form two carbocations. Write chemical equations for the formation of each carbocation and use curved arrows to show the proton transfer in each reaction. CH, CH3-C=CH-CH3 2-Methyl-2-buteneWhat are the hybridization and bond angles of the oxygens in benzoic acid?
- The following species H-C≡C -. is formed when ethyne is treated with a strong base is the conjugate base of acetylene will not react with bromoethane to form 1-butyne could react with bromocyclopentane to form an internal alkyne2. Write the chemical reaction between 1-butanol, 2-butanol and 2-methyl-2-propanol with Na2Cr207 in the presence of acid.When aniline, C6H5NH2(Kb=7.41010) , reacts with a strong acid, its conjugate acid, C6H5NH3+, is formed. Calculate the pH of a 0.100 M solution of C6H5NH3+ and compare it with the pH of acetic acid (Ka=1.86105) .
- When the conjugate acid of aniline, C6H5NH3+, reacts with the acetate ion, the following reaction takes place: C6H5NH3+(aq)+CH3COO(aq)C6H5NH2(aq)+CH3COOH(aq) If Kafor C6H5NH3+ is 1.35105 and Kafor CH3COOH is 1.86105 , what is K for the reaction?Ester formation and ester hydrolysis are exactly the same reaction only written in reverse. General reaction of ester formation: H*, heat R—с—он + Н—о—R' R—с—о-R' + H,O carboxylic acid alcohol carboxylic or phenol ester General reaction of ester hydrolysis: || R—с—OR' + H—оН R—с—оН +R—ОH ester carboxylic acid alcohol or phenol What determines which direction the reaction proceeds and what actually forms? o the boiling point of the carboxylic acid o the presence (or absence) of heat as well as the concentration of reactants and products o the molecular weight of reactants and products o the presence (or absence) of heat as well as the catalystWrite the hydrohalogenation reaction of butene where the halogen is bromine.