Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 14 - Acids and Bases - Exercises: 46

Answer

a. $[H^+]=6.7*10^{-15}\text{ M}$, Basic b. $[H^+]=2.8\text{ M}$, Acidic c. $[H^+]=1.0*10^{-7}\text{ M}$, Neutral d. $[H^+]=1.4*10^{-11}\text{ M}$, Basic

Work Step by Step

a. $[H^+][OH^-]=1.0*10^{-14}$ $[H^+]*1.5=1.0*10^{-14}$ $[H^+]=6.7*10^{-15}\text{ M}$ Because $[H^+][OH^-]$, the solution is acidic. c. $[H^+][OH^-]=1.0*10^{-14}$ $[H^+]*1.0*10^{-7}=1.0*10^{-14}$ $[H^+]=1.0*10^{-7}\text{ M}$ Because $[H^+]=[OH^-]$, the solution is neutral. d. $[H^+][OH^-]=1.0*10^{-14}$ $[H^+]*7.3*10^{-4}=1.0*10^{-14}$ $[H^+]=1.4*10^{-11}\text{ M}$ Because $[H^+]
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