Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 15 - Chemical Equilibrium - Exercises - Questions - Page 565: 29


$KSP $= $[A^{2+}{}_{(aq)} ][B^{-}{}_{(aq)}]^{2}$

Work Step by Step

Since we know the charge of B and the overall product, we can write the decomposition equation as shown below: $AB_{2}{}_{(s)} --> A^{2+}{}_{(aq)} + 2B^{-}{}_{(aq)}$ Now to write out solubility product constant expression, we don't include solids and only include the concentration of the aqueous solutions in terms of Products/Reactants where the coefficients in front of the species become exponents for that species. Therefore, the Ksp expression is shown below: $KSP $= $[A^{2+}{}_{(aq)} ][B^{-}{}_{(aq)}]^{2}$
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