Electrochemical cell lab Aim Essay Example for Free

Electrochemical cell lab Aim EssayAim - To encounter out the feasibility of a oxidation-reduction reaction by looking at the cell potential of the reaction .Quantitative observationThe table below shows the values of cell potential that were save when the experiment was performedReaction cellular telephone potential (0.01V)CuSO4 and ZnSO40.99VCuSO4 and AgNO30.64VAg1.39VQualitative ObservationReactionObsevrationsCuSO4 and ZnSO4Copper sulphate turns from clear to blue , whereas zinc sulphate the Great Compromiser colorlessCuSO4 and AgNO3Copper sulphate is blue in color , silver nitrate is colorlessAgData processingExperiment 1Zn(s) - Zn2+ (aq) + 2e- (aq)Cu2+ (aq) + 2e- (aq) - Cu (s)Cu2+ (aq) + Zn(s) - Cu(s) + Zn2+ (aq)Experiment 2Cu(s) - Cu2+ (aq)+ 2e- (aq)Ag+(aq) + e- (aq) - Ag(s)Cu(s) + 2Ag+ (aq) - Cu2+ (Aq) + 2Ag (s)Experiment 3Zn(s) - Zn2+ (aq) + 2e- (aq)Ag+ (aq) + e- (aq)- Ag(s)Zn(s) + 2Ag+ (aq) - Zn2+ (aq) + 2Ag (s)The table below shows the literature values for the respectiv e cell potentialReactionCell potential (0.01V)CuSO4 and ZnSO40.34VCuSO4 and AgNO30.46 V.Ag1.10 VError percentage= (difference between the literature and experimental value)/(the literature value )x100= (0.34V 0.99V)/(0.34V) x100= 191.17%We can similarly find the error percentages for other cell potentials alsoThe table below shows the respective error percentages of each of the cell potentialReactionError percentageCuSO4 and ZnSO4191.17%CuSO4 and AgNO339.13%Ag16.36%TheoryElectrochemical cellsIn an electrochemical cell, electricity is produced through chemical reactions. There consist two electrodes the negative electrode and the positive electrode. At the negative electrode