Ch.4 - Reactions in Aqueous Solution
Chapter 4, Problem 63
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
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 potassium chloride
(b) 0.10 M methanol
(c) 0.10 M acetic acid
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Textbook Question
A galvanic cell is constructed from a Zn/Zn2+ half-cell (anode) and a Cl2/Cl- half-cell (cathode).
(b) Write balanced equations for the electrode and overall cell reactions.
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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
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
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
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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