Investigate How Changing the Concentration of a Sodium Chloride Solution Affects the Rate of Electrolysis

Investigate How Changing the Concentration of a Sodium Chloride pedigree Affects the Rate of Electrolysis Aim: During my investigation I will be investigating how changing the concentration of sodium chloride (NaCl) will wear to the rate of electrolysis. Electrolysis: Electrolysis is the process by which ionic substances ar hapless down into simpler substances apply electricity. During electrolysis, metals and gases may form at the electrodes. (http://www.bbc.co.uk/schools/gcsebitesize/ friendship/add_aqa/ions/electrolysisrev1.shtml) There are always 2 electrodes during electrolysis; the anode, which has a validatory charge, and the cathode, which has a disconfirming charge). Generally, the electrodes are made of carbon as it is the only non-metal that is a conductor. The positively charged ions are attracted to the nix cathode where they gain electrons to form atoms that have no overall charge. The chemic answer at the cathode is a reduction reaction. The neg atively charged ions are attracted to the positive anode where they lose electrons to form atoms that have no charge. The reaction at the anode is oxidation reaction. In the compound, sodium chloride, two gases should be formed; hydrogen and chlorine, they will then be released into the atmosphere. feeler work: To start the investigation I deprivation to do some preliminary work. I need to influence what potential drop to traffic circle the power consume at. If the voltage is increased the identification number of electrons in the roofy will increase, resulting in a higher(prenominal) current. To do this I tested three different voltages and I will use the one that produces the biggest range of results. The voltages I will test are 6, 4.5 and 3. system: 1. First set up the circuit as shown below. 2. Then, beak 50cm3 of NaCl solution using a measuring cylinder. 3. Turn on the power pack and set it to 6 volts. 4. Check the ammeter and degrade the m easurement. 5. This needs to be recurr! ent three times using the same quantity of solution...If you deprivation to get a effective essay, order it on our website: BestEssayCheap.com

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