7. Carbonic acid (H2CO3) is a diprotic acid with Ka1 = 4.30 × 10–7 and   Ka2 = 5.60 × 10–11 What is the pH in a 1.834 M solution of carbonic acid? 8.  The ionization constant, Kb, for weak base, B, is 7.56 × 10–5.  What is the pH of a 0.6545 M solution of this base? The equation for the ionization of weak base B as follows.            B (aq) + H2O(l) ⇌ BH+(aq) + OH⁻(aq)

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
Section14.7: Problem Solving Using Ka And Kb
Problem 14.9PSP
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7.

Carbonic acid (H2CO3) is a diprotic acid with Ka1 = 4.30 × 10–7 and   Ka2 = 5.60 × 10–11

What is the pH in a 1.834 solution of carbonic acid?

8. 

The ionization constant, Kb, for weak base, B, is 7.56 × 10–5.  What is the pH of a 0.6545 M solution of this base?

The equation for the ionization of weak base B as follows.

           B (aq) + H2O(l) ⇌ BH+(aq) + OH⁻(aq)

 

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