Chem 2 Lab 3 - Robin Lamaak CHE1415-306 Formal Lab Report...

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Robin Lamaak CHE1415-306 Formal Lab Report #3 21 February 2011 Equilibrium Constant for FeSCN 2+ System
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Introduction The purpose of this lab is to find the equilibrium concentration of a complex ion calorimetrically. After figuring out the concentration of the other ions in the system, it will be possible to calculate the equilibrium constant. Theory There are many concepts that should be understood before the experiment is conducted, such as equilibrium, which is a state of dynamic balance in which the rates of forward and reverse reactions are equal; the state of a system when neither the forward or reverse reaction is thermodynamically favored. Reversible reactions are reactions that do not go to completion and occur in both the forward and reverse direction. The general expression for equilibrium constant K eq for a generic reaction is r for = k for [W] a [X] b or r rev = k rev [Y] c [Z] d . Characteristics of K eq in reference to dependencies include (the general expression for K c, ), and the fact that the value of K c gives extent of reaction from left to right. The equilibrium
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Chem 2 Lab 3 - Robin Lamaak CHE1415-306 Formal Lab Report...

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