We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Electrochemical cell lab Aim Essay

Sorry, but copying text is forbidden on this website!

Aim :- To find out the feasibility of a redox reaction by looking at the cell potential of the reaction .

Quantitative observation

The table below shows the values of cell potential that were recorded when the experiment was performed

Reaction

We will write a custom essay sample on Electrochemical cell lab Aim specifically for you
for only $16.38 $13.9/page

Order now

Cell potential (±0.01V)

CuSO4 and ZnSO4

0.99V

CuSO4 and AgNO3

0.64V

Ag

1.39V

Qualitative Observation

Reaction

Obsevrations

CuSO4 and ZnSO4

Copper sulphate turns from clear to blue , whereas zinc sulphate remains colorless

CuSO4 and AgNO3

Copper sulphate is blue in color , silver nitrate is colorless

Ag

Data processing

Experiment 1

Zn(s) -> Zn2+ (aq) + 2e- (aq)

Cu2+ (aq) + 2e- (aq) -> Cu (s)

Cu2+ (aq) + Zn(s) -> Cu(s) + Zn2+ (aq)

Experiment 2

Cu(s) -> Cu2+ (aq)+ 2e- (aq)

Ag+(aq) + e- (aq) -> Ag(s)

Cu(s) + 2Ag+ (aq) -> Cu2+ (Aq) + 2Ag (s)

Experiment 3

Zn(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 respective cell potential

Reaction

Cell potential (±0.01V)

CuSO4 and ZnSO4

0.34V

CuSO4 and AgNO3

0.46 V.

Ag

1.10 V

Error 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 also

The table below shows the respective error percentages of each of the cell potential

Reaction

Error percentage

CuSO4 and ZnSO4

191.17%

CuSO4 and AgNO3

39.13%

Ag

16.36%

Theory

Electrochemical cells

In an electrochemical cell, electricity is produced through chemical reactions. There consist two electrodes: – the negative electrode and the positive electrode. At the negative electrode

How to cite this page

Choose cite format:

Electrochemical cell lab Aim. (2017, Nov 11). Retrieved from https://studymoose.com/electrochemical-cell-lab-aim-essay

We will write a custom essay sample onElectrochemical cell lab Aimspecifically for you

for only $16.38 $13.9/page
Order now

Our customer support team is available Monday-Friday 9am-5pm EST. If you contact us after hours, we'll get back to you in 24 hours or less.

By clicking "Send Message", you agree to our terms of service and privacy policy. We'll occasionally send you account related and promo emails.
No results found for “ image
Try Our service
online

Hi, I am Sara from Studymoose

Hi there, would you like to get such a paper? How about receiving a customized one? Check it out https://goo.gl/CYf83b

online

Hi, I am Sara from Studymoose

Hi there, would you like to get such a paper? How about receiving a customized one? Check it out https://goo.gl/CYf83b

image

Your Answer is very helpful for Us
Thank you a lot!