Chemistry 10th Edition

Published by Brooks/Cole Publishing Co.
ISBN 10: 1133610668
ISBN 13: 978-1-13361-066-3

Chapter 18 - Ionic Equilibria I: Acids and Bases - Exercises - Review of Strong Electrolytes - Page 743: 6


(a) $[H^+] = [Br^-] = 0.45M$ (b) $[K^+] = [OH^-] = 0.045M$ (c) $[Ca^{2+}] = 0.0112M$, and $[Cl^-] = 0.0224M$

Work Step by Step

Strong electrolytes, like strong acids and bases, and salts, are capable of ionizating completely in water, therefore: - $[AB] = [A^+] = [B^-]$ Because the reaction: - $AB (aq) -- \gt A^+(aq) + B^-(aq)$ Occurs for all the compound. For $CaCl_2$, since there is 2 $Cl^-:$ - $CaCl_2 (aq) -- \gt Ca^{2+}(aq) + 2Cl^-(aq)$ The "$Cl^-$" concentration will be the double of the salt concentration. 2 * 0.0112 = 0.0224
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