BASE ELECTROCHEMISTRY
    

    
    
    


        

BASE ELECTROCHEMISTRY

Introduction

Base electrochemistry is a prerequisite of the module 1 that you must complete before taking corrosion properties of bulk materials.

Objectives

In this activity you will repeat or re-learn theory and practice of base electrochemistry (theoretical knowledge on a galvanic cell).



Activity 1: Galvanic cell 1 (Intellectual skills)

For a good results of the activity, please, read the text

Basics of Electrochemistry

and see the video

Instruction

Look at each of these task and answer the questions

Then read the feedback. Use the table of standard ELECTRODE POTENTIAL

 

Silver is cathode in Ni-Ag galvanic cell. True or false?



Note the metals that can be used as anode in galvanic cell with Co-cathode






Choose the single correct or the single incorrect statement

Choose some correct and some incorrect points for the galvanic cell were Ag-electrode is immersed into an aqueous solution of silver nitrate and Pb-electrode is immersed into an aqueous solution of lead nitrate (anode)Pb|Pb(2+)||Ag(+)|Ag(cathode) (anode)Ag|Ag(+)||Pb(2+)|Pb(cathode) Pb-2e=Pb(2+) Pb(2+)+2e=Pb

tick icon cross icon
(anode) AgNO3 || Pb(NO3)2 |Pb(cathode)
(anode)Pb|Pb(NO3)2 || AgNO3 | Ag (cathode)
Ag(ion) 1 e = Ag(s)
Ag(s) - 1e = Ag(ion)
Pb(s) - 2e = Pb(ion)
Pb(ion) 2e = Pb(s)

Activity 2: Galvanic cell 2 (Practical skills)

For a good results of the activity, please, read the text Basics of Electrochemistry and see the video presented in Activity 1

Instruction

Look at each of these task, make the calculation and chose one correct answer Then read the feedback. Use the table of standard electrode potentials

Find the standard potential of the cell Sn(s)|Sn(2+)|| Cu(2+)|Cu(s)

Find the standard potential of the cell Zn(s) | Zn(2+) || Pb(2+) | Pb(s)

Specify an equation that allows us to calculate the standard electrode potential




Would you like to review the main points?

References:

1) https://en.wikipedia.org/wiki/Galvanic_cell

2) https://chem.libretexts.org/Textbook_Maps/General_Chemistry_Textbook_Maps/Map%3A_Chem1_(Lower)/16%3A_Electrochemistry/24.2%3A_Galvanic_cells_and_Electrodes

3) http://www.chem1.com/acad/webtext/elchem/index.html

© Lyamina Galina, National Research Tomsk Polytechnic University

Created using the LOC Tool, University of Southampton