The Determination of an Equilibrium Constant Chemistry 117.

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Presentation transcript:

The Determination of an Equilibrium Constant Chemistry 117

Links UC Davis Chem Wiki – Chemical_Equilibrium/The_Equilibrium_Constant Purdue University: calculating Eq. Constants – it/Equilibrium/Calculating_Equilibrium_Constants. htm

Equilibrium Constant Value of K eq shows which way the equilibrium has shifted (ie product or reactant favored) For the reaction: aA + bB  P

Video Lecture Keq Video Part 1 Keq Video Part 2

Experimentally Finding K eq We will be using the relationship between absorbance and concentration to determine our equilibrium concentrations – You will first be creating a calibration curve – To find equilibrium concentrations you will use the calibration curve (relates absorbance to concentration) – Then use the equilibrium concentrations to find K eq