Question

ATA LABORATORY 14 uvations ELECTROCHEMICAL CELLS List any observations made during the experiment, spills, disconnects, wrome. electrodes, etc. wrong solutions,wrong Red Probe Black Probe Cell # | Electrode | Solution | Electrode | Solution | Voltage | Cathode 2 b4 4 in in Laboratory 14/ Electrochemistry 193 10

Answer 1

From Electrochemical series

Reduction potential of Cu²⁺| Cu = + 0.34 V

Pb²⁺ | Pb = -0.13 V

Zn²⁺|Zn = -0.76 V

Sn²⁺ | Sn = -0.14 V

Fe²⁺| Fe = -0.44 V

More is the reduction potential value, more is the tendency of a metal to reduce and will act as cathode

Thus, In 1, Cathode = Copper

2, cathode = Tin

3, cathode = tin

4, cathode = Lead

5, cathode = Copper

6. Iron

7. Lead

8. copper

9. Copper

10. Lead