Chemistry: The Molecular Science (5th Edition)

by Moore, John W.; Stanitski, Conrad L.

Published by Cengage Learning

ISBN 10: 1285199049

ISBN 13: 978-1-28519-904-7

Chapter 14 - Acids and Bases - Questions for Review and Thought - Topical Questions - Page 652b: 25

Answer

Hydronium ion concentration: $[H_3O^+] = 3.162 \times 10^{- 11}M$ This solution is basic.

Work Step by Step

$[H_3O^+] = 10^{-pH}$ $[H_3O^+] = 10^{- 10.5}$ $[H_3O^+] = 3.162 \times 10^{- 11}$ Solutions with pH>7 * are considered basic. * or $[H_3O^+] < 10^{-7}M$ * At 25$^{\circ}$ C

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