20. Due to COVID-19 coupled with erratic power supply from ZESCO, you decide to play around with galvanic cells and you construct a zinc-copper battery operating at a zero resistant small light emitting diode (L.E.D) at 250C as follows: Zn | Zn (0.10 M) Cu (2.5 M) | Cu The mass of each solid electrode is 2.00 g. Which of the two is a reducing agent? Calculate the cell potential when this battery is first connected. Calculate the cell potential after 10.0 A of current has flowed for 10.0 hours. (Assume cach half-cell contains 1.00 L of solution.) a) b) c)

20. Due to COVID-19 coupled with erratic power supply from ZESCO, you decide to play around with galvanic cells and you construct a zinc-copper battery operating at a zero resistant small light emitting diode (L.E.D) at 250C as follows: Zn | Zn (0.10 M) Cu (2.5 M) | Cu The mass of each solid electrode is 2.00 g. Which of the two is a reducing agent? Calculate the cell potential when this battery is first connected. Calculate the cell potential after 10.0 A of current has flowed for 10.0 hours. (Assume cach half-cell contains 1.00 L of solution.) a) b) c)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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20. Due to COVID-19 coupled with erratic power supply from ZESCO, you decide to play
around with galvanic cells and you construct a zinc-copper battery operating at a zero
resistant small light emitting diode (L.E.D) at 25°C as follows:
Zn | Zn (0.10 M) Cu (2.5 M) | Cu
The mass of each solid electrode is 2.00 g.
Which of the two is a reducing agent?
Calculate the cell potential when this battery is first connected.
Calculate the cell potential after 10.0 A of current has flowed for 10.0 hours.
(Assume each half-cell contains 1,00L of solution.)
a)
b)
c)
Calculate the mass of each electrode after 10.0 hours.
What will cause the battery to die after some time?
e)

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