Answer
The $pH$ of the aqueous solution is $6.4$.
Work Step by Step
$pH = -\log [H^{+}]$
$= -\log (4 \times 10^{-7} M)$
$= 6.3979$
$= 6.4$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Chapter 6 - Logarithmic Functions - 6.6 Solving Logarithmic Equations - 6.6 Exercises - Page 534: 20
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