4. When 0.050 mol of NaOH is added to 0.100 mol of an unknown weak acid, the pH was found to be 4.2. Which of the following can be the acid? (A) Chlorous acid (B) Nitrous acid K₂=1 x 10-² K₁ = 4 x 104 K₁ = 6 x 10-5 10-8 (C) Benzoic acid (D) Hypochlorous acid K₂=4 × Ka
4. When 0.050 mol of NaOH is added to 0.100 mol of an unknown weak acid, the pH was found to be 4.2. Which of the following can be the acid? (A) Chlorous acid (B) Nitrous acid K₂=1 x 10-² K₁ = 4 x 104 K₁ = 6 x 10-5 10-8 (C) Benzoic acid (D) Hypochlorous acid K₂=4 × Ka
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases
Section: Chapter Questions
Problem 116IL: Amino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H)...
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