Laboratory 1 chemical equilibrium 1 reading olmstead and williams chemistry chapter 14 all sections purpose the shift in equilibrium position of a chemical reaction with applied stress is determined introduction chemical equilibrium no chemical reaction goes to completion when a reaction stops some amount of reactants remain. Introduction the purpose of this experiment was to determine what factors affect chemical equilibrium these affects were observed by adding reagents to an aqueous solution of fe 3 and ncs which form a complex ion in an equilibrium reaction fe 3 aq ncs aq fencs 2 aq. Factors that affect chemical equilibrium chemical equilibrium is a very delicate system that represents a perfect balance between forward and reverse reaction a small disturb in the equilibrium may shift the equilibrium position either to right forming more products or to left forming more reactants this. Factors that affect chemical equilibrium le chateliers principle is an observation about chemical equilibria of reactions it states that changes in the temperature pressure volume or concentration of a system will result in predictable and opposing changes in the system in order to achieve a new equilibrium state le chateliers . An increase in pressure causes the equilibrium to shift backwards this is because according to lcp the system will try to decrease the pressure and can only do so by shifting the equilibrium to the side where there is less number of moles that is the left hand side
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