Decide whether each of the following substances should be classified as a Lewis acid or a Lewis base. a. BC13 (Hint: Draw the electron dot structure.) O Lewis acid OLewis base b. C2H4 (NH2 )2, ethylenediamine (Hint: Draw the electron dot structure.) OLewis acid OLewis base c. The reactants in the reaction Fe* (aq) + 6 H2O(t)2 Fe(H2O)e + (aq) Lewis acid: Lewis base: Drag and drop your selection from the following list to complete the answer: H2O(4) Fe+ (aq)

Decide whether each of the following substances should be classified as a Lewis acid or a Lewis base. a. BC13 (Hint: Draw the electron dot structure.) O Lewis acid OLewis base b. C2H4 (NH2 )2, ethylenediamine (Hint: Draw the electron dot structure.) OLewis acid OLewis base c. The reactants in the reaction Fe* (aq) + 6 H2O(t)2 Fe(H2O)e + (aq) Lewis acid: Lewis base: Drag and drop your selection from the following list to complete the answer: H2O(4) Fe+ (aq)

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter14: Acids And Bases

Section: Chapter Questions

Problem 129E: Are solutions of the following salts acidic, basic, or neutral? For those that are not neutral,...

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Are solutions of the following salts acidic, basic, or neutral? For those that are not neutral, write balanced chemical equations for the reactions causing the solution to be acidic or basic. The relevant Ka and Kb values are found in Tables 13-2 and 13-3. a. NaNO3 b. NaNO2 c. C5H5NHClO4 d. NH4NO2 e. KOCl f. NH4OCl
Ionization of the first proton from H2SeO4 is complete (H2SeO4 is a strong acid); the acid-ionization constant for the second proton is 1.2 102. a What would be the approximate hydronium-ion concentration in 0.150 M H2SeO4 if ionization of the second proton were ignored? b The ionization of the second proton must be considered for a more exact answer, however. Calculate the hydronium-ion concentration in 0.150 M H2SeO4, accounting for the ionization of both protons.
For oxyacids, how does acid strength depend on a. the strength of the bond to the acidic hydrogen atom? b. the electronegativity of the element bonded to the oxygen atom that bears the acidic hydrogen? c. the number of oxygen atoms? How does the strength of a conjugate base depend on these factors? What type of solution forms when a nonmetal oxide dissolves in water? Give an example of such an oxide. What type of solution forms when a metal oxide dissolves in water? Give an example of such an oxide.
In each of the following acid-base reactions, identify the Brnsted acid and base on the left and their conjugate partners on the right. (a) C2H5N(aq) + CH3CO2H(aq) C5H5NH+(aq) + CH3CO2(aq) (b) N2H4(aq) + HSO4(aq) N2H5+(aq) + SO42(aq) (c) [Al(H2O)6]3+ (aq) + OH(aq) [Al(H2O)5OH]2+ (aq) + H2O+()
25. Which of the following acids have relatively strong conjugate bases? a. HCN b. H2S c. HBrO4 d. HNO3
75. A conjugate acid-base pair Consists of two substances related by the donating and accepting of a(n) ________
How is acid strength related to the value of Ka? What is the difference between strong acids and weak acids (see Table 13-1)? As the strength of an acid increases, what happens to the strength of the conjugate base? How is base strength related to the value of Kb? As the strength of a base increases, what happens to the strength of the conjugate acid?