How Voltage Is Affected Within A Cell

1619 WordsMay 4, 20177 Pages
The purpose of this experiment was to test in what ways voltage is affected within a cell with them being temperature, concentration, type of metal used, and type of circuit. The Data obtained by combining two metal solutions together connected with a salt bridge and measured with a voltmeter show that increasing temperature decreases voltage as well as increasing the Q value. Series circuits were found to increase the voltage of a cell as long as it was the same type of cell being used already within the cell combination. In the process, parallel circuits were found to not affect voltage and only affect current. Introduction Electrochemistry involves studying the transfer of electrons from one metal to another. Electrochemistry allows…show more content…
Distilled water was used to dilute the solutions used in the cells, a hot plate was used to increase the temperature, sand paper to sand the metals, filter paper to act as the salt bridge, thermometer, and a voltmeter to measure the voltage. For part 1 of the experiment a total of 6 beakers are needed to hold the solutions to conduct the first test. For each metal two beakers are filled with 30mL of the .1M of solution for that metal using the graduated cylinder. Each metal solution is then paired with another metal solution such as Zinc with Copper and Zinc with Iron. Use the filter paper and soak it in the KNO3 solution to create a salt bridge, repeat this three times for each pair of metal solutions. Proceed to sand the metals then place them into their respective solutions and use a voltmeter to measure the voltage. Make sure to place the right clamps on the anode and cathode you will know if it is wrong because the voltage will be negative. Repeat this step for each of the pair of solutions then proceed onto part 2. In part 2 of the experiment zinc and copper solutions were used. Take two 50mL beakers and fill one with 30mL of zinc solution and the other with 30mL of the copper solution and connect them with filter paper that was soaked in KNO3. Sand the metal pieces for copper and zinc then place them in their respective solutions then proceeding to connect the voltmeter to
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