ORGANIC CHEMISTRY MASTERINGCHEM ACCESS
ORGANIC CHEMISTRY MASTERINGCHEM ACCESS
9th Edition
ISBN: 9780137249442
Author: Wade
Publisher: INTER PEAR
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Chapter 2.6A, Problem 2.9P

Ammonia appears in Table 2-2 as both an acid and a conjugate base.

  1. a. Explain how ammonia can act as both an acid and a base Which of these roles does it commonly fill in aqueous solutions?
  2. b. Show how water can serve as both an acid and a base.
  3. c. Calculate Ka and pKa for the hydromum ion, H3O+
  4. d. Show how methanol (CH3OH) can serve as both an acid and a base. Write an equation for the reaction of methanol with sulfuric acid.
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Which of the following statement best explain why the acidity of carboxylic acids is greater than those of the alcohols? a. Alcohols behave as neutral compounds in aqueous solution. b. Alcohol has the ability to donate proton to becomes a negative ion called an alkoxide ion, RO– c. When a carboxylic acid donates its proton, it becomes a negatively charged ion, RCOO−, called a carboxylate ion which is more stabilized by resonance. d. The OH group in alcohol is less charged and often more difficult to release electron for chemical reactions.
Each of these three molecules contains an OH group. When dissolved in water one solution has a pH7. State which substance results in which pH and explain why each substance results in that pH.
9. Diethyl amine, (CH3)2NH, has a Kb of 5.81x10-4 at 25 Ca. Write the dissociation reactionb. Calculate the pH of a 0.060 M solution c. Calculate Ka from Kb 10. The phosphate ion, PO4-3, acts as a Bronsted base in aqueous solutions. The Kb for phosphate at 25 C is 2.07x10-2a. Write the base reaction between phosphate ion and waterb. Calculate the pH of a 1.2 M solution 11. The carbonate ion, CO3-2, acts as a Bronsted base in aqueous solutions. The Kb for carbonate at 25 C is 2.19x10-4a. Write the base reaction between carbonate ion and waterb. Calculate the pH of a 0.15 M solution

Chapter 2 Solutions

ORGANIC CHEMISTRY MASTERINGCHEM ACCESS

Ch. 2.7 - Ethanol, methylamine. and acetic acid are all...Ch. 2.8 - Prob. 2.12PCh. 2.10 - Write equations for the following acid-base...Ch. 2.10 - Rank the following acids in decreasing order of...Ch. 2.11 - Prob. 2.15PCh. 2.11 - Prob. 2.16PCh. 2.11 - Consider each pair of bases and explain which one...Ch. 2.12 - Which is a stronger base ethoxide ion or acetate...Ch. 2.12 - Prob. 2.19PCh. 2.12 - Prob. 2.20PCh. 2.12 - Prob. 2.21PCh. 2.12 - Choose the more basic member of each pair of...Ch. 2.14 - Prob. 2.23PCh. 2.15D - Classify the following hydrocarbons and draw a...Ch. 2.16D - Prob. 2.25PCh. 2.17C - Draw a Lewis structure and classify each of the...Ch. 2.17C - Circle the functional groups in the following...Ch. 2 - The CN triple bond in acetonitrile has a dipole...Ch. 2 - Prob. 2.29SPCh. 2 - Sulfur dioxide has a dipole moment of 1.60 D....Ch. 2 - Which of the following pure compounds can form...Ch. 2 - Predict which member of each pair is more soluble...Ch. 2 - Prob. 2.33SPCh. 2 - Prob. 2.34SPCh. 2 - Predict which compound in each pair has the higher...Ch. 2 - All of the following compounds can react as acids...Ch. 2 - Rank the following species in order of increasing...Ch. 2 - Rank the following species in order of increasing...Ch. 2 - The Ka of phenylacetic acid is 5 2 105, and the...Ch. 2 - The following compound can become protonated on...Ch. 2 - The following compounds are listed in increasing...Ch. 2 - Prob. 2.42SPCh. 2 - Prob. 2.43SPCh. 2 - Compare the relative acidity of 1-molar aqueous...Ch. 2 - The following compounds can all react as acids. a....Ch. 2 - The following compounds can all react as bases. a....Ch. 2 - The following compounds can all react as acids. a....Ch. 2 - Prob. 2.48SPCh. 2 - Methyllithium (CH3Li) is often used as a base in...Ch. 2 - Label the reactants in these acid-base reactions...Ch. 2 - In each reaction, label the reactants as Lewis...Ch. 2 - Prob. 2.52SPCh. 2 - Each of these compounds can react as a nucleophile...Ch. 2 - Prob. 2.54SPCh. 2 - Give a definition and an example for each class of...Ch. 2 - Circle the functional groups in the following...Ch. 2 - Prob. 2.57SP
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General Chemistry | Acids & Bases; Author: Ninja Nerd;https://www.youtube.com/watch?v=AOr_5tbgfQ0;License: Standard YouTube License, CC-BY