WebThus, dimethylamine is the stronger base. 23.23 Explain the difference between the p Ka values of the conjugate acids of the following bases. Answer: The smaller p Ka of the conjugate acid of the second compound means that it is the stronger acid. Thus, the second amine is the weaker base. WebIn this case, we are given Kb for a base (dimethylamine) and asked to calculate Ka and pKa for its conjugate acid, the dimethylammonium ion. Because the initial quantity given is Kb rather than pKb, we can use Equation 16.5.10: KaKb = Kw. Substituting the values of Kb and Kw at 25°C and solving for Ka, Ka(5.4 × 10 − 4) = 1.01 × 10 − 14

16.5: Weak Acids and Weak Bases - Chemistry LibreTexts

WebAn acid-base buffer is a solution that contains a weak acid and its conjugate base. A buffer solution may be prepared by dissolving a weak base and then adding strong acid to obtain a buffer with the required pH. 1st attempt Feedback What volume of 1.57MHCl must be added to 0.230 L of 0.213M dimethylamine to produce a buffer with a pH of 10.43 ? WebDec 12, 2015 · CH + has 4 resonance structures; DH + has 0 resonance structures. Judging by this, C should be the most basic, as its conjugate acid is most stabilised by … medihoney studies

Solved A pH buffer is a solution that resists changes in pH - Chegg

WebDimethylamine (CH3)2NH or C2H7N CID 674 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and … WebDimethylamine, (CH3)2NH, is a weak base ( Kb = 5.4 x 10?4). What is the pH of a 0.50 M solution and what is the percent dissociation? A) 12.2, 3.2% B) 0.016, 3.2% C) 8.5, 6.3 x 10?4 % D) 1.8, 3.2% E) 5.5, 6.3 x 10?4 % This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. medihoney wound healing