For which of these pairs of species is the first species an acid AND the second species is its conjugate base? NH₄⁺, NH₂⁻ NH₄⁺, NH₃ NH₃, NH₄⁺ NH₂⁻, NH₃ Which of these solutions will have the lowest pH? 0.1 M HCN (pKa = 9.21) 1 x 10⁻⁶ M HCl 0.1 M NH₃ (pKb = 4.76) 0.1 M acetic acid (pKa = 4.76)
For which of these pairs of species is the first species an acid AND the second species is its conjugate base? NH₄⁺, NH₂⁻ NH₄⁺, NH₃ NH₃, NH₄⁺ NH₂⁻, NH₃ Which of these solutions will have the lowest pH? 0.1 M HCN (pKa = 9.21) 1 x 10⁻⁶ M HCl 0.1 M NH₃ (pKb = 4.76) 0.1 M acetic acid (pKa = 4.76)
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter14: Acids And Bases
Section: Chapter Questions
Problem 64QRT:
Lactic acid, C3H6O3, occurs in sour milk as a result of the metabolism of certain bacteria....
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For which of these pairs of species is the first species an acid AND the second species is its conjugate base?
- NH₄⁺, NH₂⁻
- NH₄⁺, NH₃
- NH₃, NH₄⁺
- NH₂⁻, NH₃
Which of these solutions will have the lowest pH?
- 0.1 M HCN (pKa = 9.21)
- 1 x 10⁻⁶ M HCl
- 0.1 M NH₃ (pKb = 4.76)
- 0.1 M acetic acid (pKa = 4.76)
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