Week Three

    This week we did more tests to see how series and parallel affected the potential. We also tested the number of cells in the series and how the number affected the potential. We tested concentration of salt in the water to see how that affected it as well.

     At the team meeting this week (Monday the 20th), we set up the ice cube tray to fit 7 cells alternating. We connected the wires to each other and the Aluminum and Copper pieces. We made sure to cut the pieces of metal all to the same size as well as put the same amount of water in each cell. We set it up so that it will be an easy set up in lab on Wednesday by twirling the wires together. We also tested the potential with 7 cells which was about 3.23 V. We tried attaching it to the motor, but the motor would not work with the electrochemical cell. We are in the process of troubleshooting to try to figure out why and how we can fix it. The motor works when attached to a battery of the same or less voltage.
Other than that minor setback, the project is going well, as we have working electrochemical cells.

The electrochemical cell