Intermediate Algebra: Connecting Concepts through Application

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: 20

Answer

The $pH$ of the aqueous solution is $6.4$.

Work Step by Step

$pH = -\log [H^{+}]$ $= -\log (4 \times 10^{-7} M)$ $= 6.3979$ $= 6.4$
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