Chemistry: An Atoms-Focused Approach (Second Edition)
2nd Edition
ISBN: 9780393615197
Author: Thomas R. Gilbert, Rein V. Kirss, Natalie Foster, Stacey Lowery Bretz
Publisher: W. W. Norton & Company
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A chemistry graduate student is given 450. mL of a 1.00M chlorous acid (HClO₂) solution. Chlorous acid is a weak acid
-2
with K = 1.1 × 10 . What mass of NaClO₂ should the student dissolve in the HClO2 solution to turn it into a buffer with
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pH = 1.52?
You may assume that the volume of the solution doesn't change when the NaClO₂ is dissolved in it. Be sure your answer
has a unit symbol, and round it to 2 significant digits.
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A chemistry graduate student is given 500. mL of a 1.50M chlorous acid (HClO₂) solution. Chlorous acid is a weak acid with K=1.1 × 10
KClO₂ should the student dissolve in the HClO₂ solution to turn it into a buffer with pH = 1.87?
You may assume that the volume of the solution doesn't change when the KClO₂ is dissolved in it. Be sure your answer has a unit symbol, and round it to 2
significant digits.
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A solution contains 0.220 M Pb2+ and 0.49 M Al3+. Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2. The Ksp values for Al(OH)3 and Pb(OH)2 can be found in this table.
Lead(II) hydroxide
Pb(OH)2
1.43×10–20
Aluminium hydroxide
Al(OH)3
4.6×10–33
Chapter 16 Solutions
Chemistry: An Atoms-Focused Approach (Second Edition)
Ch. 16 - Prob. 16.1VPCh. 16 - Prob. 16.2VPCh. 16 - Prob. 16.3VPCh. 16 - Prob. 16.4VPCh. 16 - Prob. 16.5VPCh. 16 - Prob. 16.6VPCh. 16 - Prob. 16.7VPCh. 16 - Prob. 16.8VPCh. 16 - Prob. 16.9VPCh. 16 - Prob. 16.10VP
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