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)

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Chapter1: Chemical Foundations
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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)
Transcribed Image Text:Y Highlight 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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