General Chemistry
General Chemistry
4th Edition
ISBN: 9781891389603
Author: Donald A. McQuarrie, Peter A. Rock, Ethan B. Gallogly
Publisher: University Science Books
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Chapter 21, Problem 21.30P

(a)

Interpretation Introduction

Interpretation:

pH of the resulting solution has to be calculated when 20mL of 0.20M HCl(aq) is added to 40mL of 0.10 M NaOH(aq).

Concept Introduction:

pH definition:

The concentration of hydrogen ion is measured using pH scale.  The acidity of aqueous solution is expressed by pH scale.

The pH of a solution is defined as the negative base-10 logarithm of the hydrogen or hydronium ion concentration.

    pH=-log[H3O+]

 (b)

Interpretation Introduction

Interpretation:

pH of the resulting solution has to be calculated when 20mL of 0.20M HCl(aq) is added to 20mL of 0.15 M NaOH(aq).

Concept Introduction:

Refer part (a).

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