(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The reaction 2Fe^{3+}+ Ni(s) = 2Fe^{2+}+ Ni^{2+}has equilibrium constant K = 1.5E34. What is the concentration of Fe^{3+}at equilibrium if a lot of Ni(s) is added to a 0.1 M solution of Fe^{3+}that initially contains no Fe^{2+}?

3. The attempt at a solution

K = 4x^{3}/(0.1-2x)^{2}

My plan is to find x. [Fe^{3+}] is then 0.1-x, but how do I solve this problem involving a cube root?

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# Homework Help: Equilibrium problem involving cube root

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