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- For the following acid-base reaction, predict which side of the equilibrium is favored. F3C он HO, F3CThe conjugate acid of HSO4‒ in the reaction: HSO4‒ + H2O <=> H2SO4 + OH‒ H2SO4 H2O SO42‒ OH‒2,4-Pentanedione is a considerably stronger acid than is acetone (Chapter 19). Write a structural formula for the conjugate base of each acid and account for the greater stability of the conjugate base from 2,4-pentanedione.
- Ammonia, NH3, is also a weak base with K, = 1.8x10-5. Which of the following is the best explanation for why triethylamine is a stronger base than ammonia? O The three ethyl groups on triethylamine are more electronegative than the hydrogens on ammonia and make triethylamine a stronger base. The hydrogens on ammonia are more electronegative than the ethyl groups on triethylamine, making ammonia a weaker base than triethylamine. The three ethyl groups on triethylamine that replace hydrogens on ammonia are electron rich and donate electron density to the N making triethylamine a stronger base. The question as stated is incorrect, ammonia is a stronger base than triethylamine because of the bigger lone pair of electrons on the N of ammonia compared to the N on triethylamine.Which of the following would represent the strongest acid? OK₂ = 2.5 x 10-5 O pk = 14.5 O pk₁ = 4.60 OK₂ = 2.5 x 10-¹TE Which is the strongest acid? OCarbonic acid 4.3 x 10 OCitric acid K=7.4 x 10 -4 Cyanic acid K2-3.5 x 10-4 OChloroacetic acid Ka = 1.4 x 10-3 Chlorous acid K = 1.1 x 10-2
- Which of the following has the strongest conjugate base? Group of answer choices benzoic acid (Ka = 6.5 x 10-5) hydrazoic acid (Ka = 1.9 x 10-5) chlorous acid (Ka = 1.1 x 10-2) carbonic acid (Ka = 4.3 x 10-7) chloroacetic acid (Ka = 1.4 x 10-3)The correct order of increasing the acidity for the following molecules is: 1,3-Diketone > carboxylic acid > alcohol > ketone > amide (the weakest) Carboxylic acid >1,3-diketone > ketone > alcohol > nitrile (the weakest) 1,3-Diketone > 1,3-diester > alcohol > ketone > amide (the weakest) الأنتنامى 1,3-Diketone > ketone > alcohol > 1,3-diester > amide (the weakest) Carboxylic acid >1,3-diketone > nitrile > alcohol > ketone (the weakest)Complete the equation to show how pyridine, C5H5NC5H5N, acts as a Brønsted-Lowry base in water. equation: C5H5N+H2O↽−−⇀
- Answer numbers 4, 5, and 6 Find : (a) pOH (b) [H3O+] (c) [OH-]Complete each acid-base reaction and predict whether the position of equilibrium lies toward the left or toward the right. (a) CH3CCH+CH3CH2ONa+CH3CH3OH (b) CH3CCCH2CH2OH+Na+NH2NH3(l)Predict the stronger acid in each pair: benzoic acid (C6H5COOH) or phenol (C6H5OH).