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A 100.0-mL aliquot of 0.100 M weak base B (pKb 5.00) was titrated with 1.00 M HClO4

Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris ISBN: 9781429218153 475

Solution for problem 10-14 Chapter 10

Quantitative Chemical Analysis | 8th Edition

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Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris

Quantitative Chemical Analysis | 8th Edition

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Problem 10-14

A 100.0-mL aliquot of 0.100 M weak base B (pKb 5.00) was titrated with 1.00 M HClO4. Find the pH at the following volumes of acid added and make a graph of pH versus Va: Va 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL.

Step-by-Step Solution:
Step 1 of 3

Cations of weak bases are ACIDIC. They donate H to water making the weak + base and H O3which reduces the pH of the solution: NH 4+ (aq) .... + .... 2 O .... ---> ....NH 3aq) .... + .... H3O (aq) + Donates H weak base ACIDIC solution Cations of strong bases are NEUTRAL. They do not interact with water: Na (aq) .... + .... H2O .... ---> .... No Reaction Anions of weak acids are BASIC. They accept H from water making the weak - acid and OH which increases the pH of the solution: F (aq) .... + .... 2 O .... ---> .... HF(aq) .... + .... OH (aq) + Accepts H weak acid BASI

Step 2 of 3

Chapter 10, Problem 10-14 is Solved
Step 3 of 3

Textbook: Quantitative Chemical Analysis
Edition: 8
Author: Daniel C. Harris
ISBN: 9781429218153

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A 100.0-mL aliquot of 0.100 M weak base B (pKb 5.00) was titrated with 1.00 M HClO4