pH=7.30

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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pH=7.30

<Chapter 17 Ready-To-Go Teaching Module After Class: Understanding the pH of Buffer Systems
Exercise 17.55 - Enhanced - with Feedback
I Revie
MISSED THIS? Watch KOCV 17.3; Read Section 17.3. You
can click on the Review link to access the section in your
e Тext.
Part A
The following table shows the values of ionization
constants for a number of acids and bases at 25 °C:
Part B
Formula
Ka
HC2 H3O2 1.8 × 10-5
For the best system, calculate the ratio of the masses of the buffer components required to make the buffer.
HC1O2
1.1 × 10–2
Express your answer to two significant figures.
-5
NH3
1.76 × 10
HCIO
2.9 x 10–8
?
m(KCIO)
m(HCIO)
Transcribed Image Text:<Chapter 17 Ready-To-Go Teaching Module After Class: Understanding the pH of Buffer Systems Exercise 17.55 - Enhanced - with Feedback I Revie MISSED THIS? Watch KOCV 17.3; Read Section 17.3. You can click on the Review link to access the section in your e Тext. Part A The following table shows the values of ionization constants for a number of acids and bases at 25 °C: Part B Formula Ka HC2 H3O2 1.8 × 10-5 For the best system, calculate the ratio of the masses of the buffer components required to make the buffer. HC1O2 1.1 × 10–2 Express your answer to two significant figures. -5 NH3 1.76 × 10 HCIO 2.9 x 10–8 ? m(KCIO) m(HCIO)
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