Complete the table describing the relationship between changes in concentration

Question

Complete the table describing the relationship between changes in concentration of reactants and products, and the magnitude of the cell potential. Decrease Increase Stays the Same Change in Amounts of Reactants or Products Increase Concentration of Aqueous Reactants Does Q Does E Increase, Decrease, or Increase, Decrease, or Stay the Same? Stay the Same? Decrease Concentration of f Aqueous Reactants Increase Concentration of Aqueous Products Decrease Concentration of Aqueous Products Insoluble Reactant Solid is Added Insoluble Product Solid is Added

Explanation / Answer

When adding a reactant or removing a product that is in the reaction quotient expression (Q ), the value of Ecell will Increase therefore the reaction becomes more spontaneous. The same is true in reverse So

1) Decrease - Increase

2) Increase - Decrease

3) Increase - Decrease

4) Decrease - Increase

5 and 6 no change, as teh key word is insoluble

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