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concentration of Ca^2+

What is the concentration of Ca^2+ (in M) that remains dissolved after addition of .15 mol Ca^2+ and .16 mol C2O4^2- to make a 1.0L aqueous solution? (Ksp= 2.7*10^-9)

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In these questions, you treat them like a limiting reagent question, since it is quite obvious that CaC2O4 will precipitate (in the question, but also it has such a small Ksp).

If we precipitate all ...

Solution Summary

It finds the concentration of Ca2+ after the reaction.