Procedure:
1. Place the zinc nitrate solution into a beaker and connect the zinc electrode so that it is partially submerged in the solution.
2. Place copper (II) nitrate solution into the porous cup and connect a copper electrode so that it is partially submerged in the solution.
3. Connect each electrode up to the voltmeter. If the needle moves left, change the connection so that the needle moves right. Record your observations.
4. Remove the copper electrode and porous cup. Pour out the solution from the porous cup and thoroughly rinse and dry the porous cup.
5. Repeat steps 2 to 4 using nickel/nickel (II) nitrate and zinc/zinc nitrate.
6. Repeat steps 2 to 4 using iron/iron (II) nitrate and zinc/zinc nitrate.
7. Repeat steps 2 to 4 using silver/silver nitrate and zinc/zinc nitrate.
8. Remove the porous cup and pour out the contents of the beaker.
9. Place the porous cup back into the beaker and use iron/iron (II) nitrate.
10. Repeat steps 8-9 using nickel/nickel (II) nitrate in the beaker and silver/silver nitrate.
Record your predicted observations
No data.
As an AI bot, I don't have the ability to predict observations or perform experiments in real-time. However, based on the given procedure, I can provide some general predictions for the observations you might expect during the experiment.
1. Observation with copper/copper (II) nitrate and zinc/zinc nitrate:
- When the two electrodes are connected to the voltmeter, you would likely observe a flow of electrons from the zinc electrode to the copper electrode.
- The needle in the voltmeter should move to the right, indicating that there is a positive voltage or electric potential difference.
2. Observation with nickel/nickel (II) nitrate and zinc/zinc nitrate:
- Similar to the previous case, you would expect a flow of electrons from the zinc electrode to the nickel electrode.
- The needle in the voltmeter should move to the right, indicating a positive voltage.
3. Observation with iron/iron (II) nitrate and zinc/zinc nitrate:
- Again, there would be a flow of electrons from the zinc electrode to the iron electrode.
- The voltmeter needle should move to the right, indicating a positive voltage.
4. Observation with silver/silver nitrate and zinc/zinc nitrate:
- Once more, there would be a flow of electrons from the zinc electrode to the silver electrode.
- The voltmeter needle should move to the right, indicating a positive voltage.
Please note that these predictions are based on general knowledge of electrochemical reactions and may vary depending on the specific concentrations and conditions of the solutions used in the experiment. It is important to conduct the experiment and record your actual observations to confirm the results.