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- 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) .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) .Draw the major organic products for each of the following reactions. If no reaction occurs, state so. (a) Br (b) ? + (CH),CuLi → ? + CuLi (c) (d) Br CI. CuLi ? ? + CuLi 2 +
- Write the basic equilibrium equation for (CH₃)₂NH.In each of the following reactions, two possible organic products can be formed. Draw both organic products in each case and then circle the one formed in greatest quantity in each case. HC (a) 1) NaH, 2) acid (b) CH,CH,OH (c) CH,CH,OH NH2 (d) OName the following compound. [P(NH3)5Cl]Cl2
- Draw the product formed when (CH3CH2)3N:, a Lewis base, reacts with each Lewis acid: (a) B(CH3)3; (b) (CH3)3C+; (c) AlCl3.Treating choline with acetic anhydride gives acetylcholine, a neurotransmitter. Write an equation for the formation of acetylcholine. (CH,),NCH,CH,OH Choline1. For the reaction (CH3)2O + C₂H5F → [(CH3)2OC₂H5]+F¯ (a) draw the structure for the cation
- || CH2-С-NH 2 KOBr → (A); Product (A) is : C-0- CH3 (a) (b) (c) NH (d) NH 3.Write the products of the following acid-base reactions: (a) CH3OH + H2SO4 ² ? (b) CH3OH + NANH2 2 ? (c) CH3NH3+ Cl- + NaOH ?Please draw the corresponding structure of the following compounds. CH3CH₂OH + PCC → 1. (a) 2. Br (a) [the answer from #1] + OH + H₂CRO4 → 3. Mg →