Concept explainers
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Organic Chemistry
- Calculate the pH, [H3O+],[OH-], Ka and α values.arrow_forwardWhich of the following two acids has the stronger conjugate base? Nitrous acid, Ka = 7.1 x 10–4 Phenol, Ka = 1.0 x 10–10 The strength of the conjugate base cannot be obtained from the information given. Nitrous acid, because it has a larger Ka value. Nitrous acid, because it has a smaller Ka value. Phenol, because it has a larger Ka value. Phenol, because it has a smaller Ka value.arrow_forwardWhen the reaction below reaches equilibrium, does the equilibrium lie on the left or the right side? Briefly explain.ClO– + CH3CO2H ⇌ HClO + CH3CO2–arrow_forward
- The base methylamine ( CH3NH₂) has a Kb of 5.0 x 10-4. A closely related base, trimethylamine ( (CH3)3N), has a Kb of 7.4 x 10-5. a Which of the two bases is stronger? methylamine trimethylamine Correct Since methylamine has the larger K₁, methylamine is the stronger base. b Calculate the pH of a 0.38 M solution of the stronger base. pH =arrow_forwardWhy is H2SeO4 a weak acidarrow_forwardDescribe the acidity/basicity of each species and estimate the position of each equilibrium. CH3CH₂O + CH3C=CH CH3CH₂OH + H3CC=C b d a On the left, a is the and b is th✓ On the right, c is the and d is tl The species favored at equilibrium are those stronger acid stronger base weaker acid weaker base C Carrow_forward
- the acidic dissociation of methyl ammonium hydrochloride, CH3NH3Clarrow_forwardCalculate the pH of an acetic acid solution, originally 0.25 M, in water. The pKa for acetic acid = 4.76.arrow_forwardDescribe the acidity/basicity of each species and estimate the position of each equilibrium. CH3CH₂OH₂ CH3CH₂OH + a NH4 b and b is the On the left, a is the On the right, c is the and d is the The species favored at equilibrium are those C ◊ ◊ C + NH3 darrow_forward
- 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.arrow_forwardTrichloroacetic acid (CCl3COOH) is a corrosive acid that is used to precipitate proteins. The pH of a 0.050 M solution of trichloroacetic acid is the same as the pH of a 0.040 M HClO4 solution. Calculate Ka and pKa for trichloroacetic acid.arrow_forwardCalculate the pH of 1M solution of acedic acid (pKa = 4.76)?arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning