Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 18 - Problems: 18.94

Answer

See explanation below.

Work Step by Step

The concentrations of both the solutions are equal, but Ka of Co2+ is greater than Ka of Ni2+. So, Ni2+ is less acidic and therefore, it's solution will have a greater pH. This can be found in the chapter 18 selection.
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