Hi Friends!

 

I'm planning to make a Galvanic/Daniell Cell (Electrochemistry). I've been given the following materials:

 

1. Magnesium Ribbon (5cm)

2. Zinc Strip (2cm by 5cm)

3. Copper Strip (2cm by 5cm)

4. Beakers

5. Crocodile Clips and Wires

6. One 1.5V bulb

7. One LED

8. 100Ω resistor

9. One switch

10. Potassium Chloride

 

I'm wondering that since using the zinc and copper strips would produce an e.m.f of 1.10V, would it be enough to light up a 1.5V for at least 10 seconds or more? Does anyone have other possible combinations for the strips like instead of copper and zinc, say maybe magnesium and zinc etc.. If so, what would be the e.m.f output? If i use zinc and copper strips, where do i get the Zinc Sulfate and Copper Sulfate solutions in the form of household chemicals and consumer products? (I don't have a license to get them in pure form and industrial chemicals is not an option). I've been bothered about this project for the past few days especially the e.m.f value and how to obtain the solutions.. Any help would be greatly appreciated!

 

Regards

the easiest way to get the sulfate solutions would be to cut your strips in half and dissolve one of each in some sulfuric acid... does your school/college/university chemistry lab have sulfuric acid?

 

any cell you can make will light up for more than a few seconds assuming the emf is high enough for the bulb. the easiest method would be to buy a lemon, use the copper and zinc strips as electrodes (which you shove into the lemon) to power the bulb. I doubt it'd be very bright but you certainly can get a voltage (emf) from that.