Electrolysis :: Papers

Electrolysis How is the amount of copper deposited affected by the voltage? aim The aim of this experimentation is to find out what effect the change in voltage has upon the amount of copper deposited in 5 minutes. The voltages I lead be using are 2, 4, 6, 8, 10 and 12volts I will consumption these voltages beca give they are the only ones available on the power pile. I am doing the experiment for 5 minutes because it is enough time to get a result and it is short enough for doing 6 voltages in one lesson. I will repeat this on another lesson to gain 2 sets of results. prodigy I predict that 12v will produce the most copper because at that place is more energy being transferred into the copper ions making the move quicker. charming testing To make this experiment fair I will use the same amount of copper chloride (30ml) for each test, use the same black lead rods and sand them down to the same viewt each time, do the experiment for the same length of time (5 mins). Apparatus * Power pack * 50ml beaker * 2 wires (with crocodile clips) * 2 graphite rods * Plastic rod holder * Sand news report * Copper chloride * Stop watch * Filter paper (to filter and deposited copper in the solution) * Funnel (to hold filter paper) * Weighing scales (electronic for more accuracy) IMAGE method First I will plug in the power pack and the scales, pour 30ml of copper chloride into a beaker, sand a graphite rod, weigh it, record its weight and clip the negative wire to it (this rod is sledding to collect the copper because it is negative and the positive ions of the copper will be attracted to it), the other rod will have the positive