Essay on The Reaction Between Iron Nitrate And Potassium

1157 Words Sep 30th, 2016 5 Pages
Introduction

Equilibrium is the concept that in a chemical reaction where both the forward and reverse reactions occur, equilibrium is reached when both reactions are occurring at the same rate, thus once a reaction is at equilibria both the forward and reverse reactions are occurring at the same rate. For a given Chemical Equilibrium at a given temperature, keq can be calculated that will be constant no matter the initial values of the reactants and products. For a reaction: the equilibrium constant, . When a reaction has not yet equilibrium, or to test whether it has, an equilibrium quotient can be obtained using the same formula to obtain the reaction quotient, to determine whether a reaction will proceed or isf it is at equilibrium. In this experiment we studied the reaction between iron nitrate and potassium thiocyanate in water. Both of these compounds dissolve completely in water, and the iron bonds with six water molecules to form {Fe(H2O)}3+. When combined the iron and thiocyanate bond into thiocyanate, which is a red orange color, leaving nitrate and potassium as spectator ions. When the spectator ions and hydrates are ignored, the final BCE is:

In this experiment we should be able to find accurate values for the absorptivity constant of Fe(SCN)2+ at its max, as well as the keq of the equation we are studying. The reaction should have a K substantially greater than one, as Fe(SCN)2+ is not absorbent in water according to basic dissolution rules. This…

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