Help with calculating concentrations at equilibrium?

Posted on 2016-04-04 18:47:00 in Chemistry by JENNIFER

Hi, I’m looking from a method to calculate changes in concentration from an initial concentration to that at equilibrium (example question below). 

Sn + Pb2+ = Pb + Sn2+ 

Sn + Pb2+ = Sn2+ + Pb 
Kc at 298k = 2.2 

If the initial concentration of Pb2+ was 1.0 moldm-3, calculate the concentration of Sn2+ and Pb 2+ at equilibrium. 

I’ve seen the ICE box method but struggled to apply it – any help much appreciated!

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