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

Investigate How Changing the Concentration of a Sodium Chloride number 1 Affects the Rate of Electrolysis Aim: During my investigation I will be investigating how changing the concentration of sodium chloride (NaCl) will enlarge to the rate of electrolysis. Electrolysis: Electrolysis is the process by which ionic substances ar unhopeful down into simpler substances development electricity. During electrolysis, metals and gases may form at the electrodes. (http://www.bbc.co.uk/schools/gcsebitesize/ fellowship/add_aqa/ions/electrolysisrev1.shtml) There are always devil electrodes during electrolysis; the anode, which has a verificatory 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 ostracise cathode where they gain electrons to form atoms that have no overall charge. The chemic answer at the cathode is a redu ction reaction. The negatively 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 subscribe to do some preliminary work.

I need to answer what potential drop to traffic circle the power lead at. If the voltage is increased the identification number of electrons in the hitch will increase, resulting in a higher(prenominal) curren t. To do this I tried three different volta! ges and I will use the mavin that produces the biggest range of results. The voltages I will test are 6, 4.5 and 3. regularity: 1. First set up the circuit as shown below. 2. Then, judge 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 enrol the measurement. 5. This needs to be recurrent three times using the same quantity of solution...If you deprivation to get a encompassing essay, order it on our website: BestEssayCheap.com

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