Chemistry: Atoms First (2nd Edition)

Published by Cengage Learning
ISBN 10: 1305079248
ISBN 13: 978-1-30507-924-3

Chapter 13 - Questions - Page 575a: 21


a. $pOH = 11.21$: Not basic. b. $pH = 9.42$: Basic c. $[OH^-] > [H^+]$: Basic d. $[OH^-] > 1.0 \times 10^{-7}M$ : Basic

Work Step by Step

a. The range for basic in pOH is < 7; Since 11.21 is greater than 7, this isn't a basic solution. b. The range for basic in pH is > 7; Since 9.24 > 7, this is a basic solution. c. This is exactly the condition for basic solutions: $[OH^-] > [H^+]$; Basic solution. d. At $25^{\circ}C$, this is the exactly range for basics solutions: $[OH^-] > 1.0 \times 10^{-7}$: Basic solution.
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