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Concept explainers
(a)
Interpretation:
The standard free energy for dissociation of fluoroacetic acid is to be predicted.
Concept introduction:
The relation between standard free energy of ionization
Where,
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•
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(b)
Interpretation:
The standard free energy for dissociation of acetic acid is to be predicted.
Concept introduction:
The relation between standard free energy of ionization
Where,
•
•
•
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Chapter 3 Solutions
EBK ORGANIC CHEMISTRY
- Will acetylene react with sodium hydride according to the following equation to form a salt and hydrogen, H2? Using pKa values given in Table 4.1, calculate Keq for this equilibrium.arrow_forward(a) Given that Ka for acetic acid is 1.8 x 10-5 and that forhypochlorous acid is 3.0 x 10-8, which is the stronger acid?(b) Which is the stronger base, the acetate ion or the hypochloriteion? (c) Calculate Kb values for CH3COO- and ClO-.arrow_forwardAcetic acid, CH3COOH, is a weak organic acid, pKa 4.76. Write an equation for the equilibrium reaction of acetic acid with each base. Which equilibria lie considerably toward the left? Which lie considerably toward the right? Q.) NaOHarrow_forward
- The base-dissociation constant, Kb, for pyridine, C5H5N is 1.4x10-9. The acid- dissociation constant, Ka for the pyridinium ion, C5H5NH+ is?arrow_forward5. (a) HF is an acid. What is it's conjugate base ? (b) CIO₂ is a base. What is it's conjugate acid ? (c) What is the conjugate base of H₂PO4¹ ? (d) What is the conjugate acid of H₂PO4-¹ ?arrow_forwardно HO но он The pK, of ascorbic acid (vitamin C) is 4.17, showing that it is slightly more acidic than acetic acid (CH3CO0H, pKa 4.74). (a) Show the fou r different conjugate bases that would be formed by deprotonation of the four different OH groups in ascorbic acid. (b) Compare the stabilities of these four conjugate bases, and predict which OH group of ascorbic acid is the most acidic. (c) Compare the most stable conjugate base of ascorbic acid with the conjugate base of acetic acid, and suggest why these two compounds have similar acidities, even though ascorbic acid lacks the carboxylic acid (COOH) group.arrow_forward
- (a) Rank the following compounds in order of increasing acidity. (b) Which compound forms the strongest conjugate base?arrow_forwardwhat is the solubility class and degree of unsaturation of myristic acid?arrow_forwardlodoform (HCl3, carbon with one hydrogen and three iodines) is a bright yellow solid. Which of the reactions below will produce iodoform as a byproduct? (A) (B) (C) (D) 12 NaOH 12 H3O+ 12 NaOH 12 H3O+arrow_forward
- 3. What is observed when the H2O concentration in the acetic acid equilibrium becomes relatively low? Relatively high? 4. Humidity indicator cards (HIC) are commonly added to semiconductor shipments to document that the parts were not exposed to humidity. These cards are impregnated with cobalt(II) chloride, or an alternative, and change color to indicate the presence of water. Predict the color you would see if a cobalt(II) chloride HIC were exposed to moist, humid air?arrow_forwardAmmonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in thefollowing reaction:NH3 + H+ → NH4 +NH3 freely permeates biological membranes, including thoseof lysosomes. The lysosome is a subcellular organelle witha pH of about 4.5–5.0; the pH of cytoplasm is about 7.0.What is the effect on the pH of the fluid content of lysosomes when cells are exposed to ammonia? Note: Ammonium (NH4 +) does not diffuse freely across membranes.arrow_forwardChemical Equilibrium Write the equilibrium-constant expressions and obtain numerical values for each constant in (a) the basic dissociation of aniline, C6H5NH2. (b) the acidic dissociation of hypochlorous acid, HClO. (c) the acidic dissociation of methyl ammonium hydrochloride, CH3NH3Cl. (d) the basic dissociation of NaNO2. (e) the dissociation of H3AsO3 to H3O+ and AsO33- Using step-by-step processarrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
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