Ch.4 - Reactions in Aqueous Solution
Chapter 4, Problem 65
A solution of HCl in water conducts electricity, but a solu-tion of HCl in chloroform, CHCl3, does not. What does this observation tell you about how HCl exists in water and how it exists in chloroform?
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Textbook Question
The following aqueous solutions were tested with a light bulb conductivity apparatus, as shown in Figure 4.3. What result—dark, dim, or bright—do you expect from each?
(a) 0.10 M hydrofluoric acid
(b) 0.10 M sodium chloride
(c) 0.10 M glucose (C6H12O6)
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Textbook Question
How would you prepare 250 mL of a 0.325 M solution of benzoic acid 1C7H6O22 in chloroform 1CHCl32?
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Textbook Question
Individual solutions of Ba(OH)2 and H2SO4 both conduct electricity, but the conductivity disappears when equal molar amounts of the solutions are mixed. Explain.
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Textbook Question
Classify each of the following substances as a strong electrolyte, weak electrolyte, or nonelectrolyte.
(a) HBr
(b) HF
(c) NaClO4
(d) (NH4)2CO3
(e) NH3
(f) Ethyl alcohol
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Textbook Question
Is it possible for a molecular substance to be a strong electrolyte? Explain.
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Textbook Question
What is the total molar concentration of ions in each of the following solutions, assuming complete dissociation? (a) A 0.750 M solution of K2CO3
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