Answer
$4.8*10^{-4}$ OH- mol / L
Work Step by Step
Since the p in pH stands for negative log...
$10^{-3.15}-10^{-3.65} = 4.8*10^{-4}$
Since we are making the pH go up we add OH-.
Chemistry: The Molecular Nature of Matter and Change 7th Edition
by Silberberg, Martin; Amateis, Patricia
Published by
McGraw-Hill Education
ISBN 10:
007351117X
ISBN 13:
978-0-07351-117-7
Chapter 18 - Problems - Page 818: 18.31
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