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A highly concentrated salt solution, called brine, is used as the electrolyte in this cell - VCE - SSCE Chemistry - Question 14 - 2007 - Paper 1
Question 14
A highly concentrated salt solution, called brine, is used as the electrolyte in this cell. The main reason that a highly concentrated, rather than a dilute, solutio... show full transcript
Worked Solution & Example Answer:A highly concentrated salt solution, called brine, is used as the electrolyte in this cell - VCE - SSCE Chemistry - Question 14 - 2007 - Paper 1
Step 1
B. produce chlorine gas, in preference to oxygen gas.
Answer
Using a highly concentrated brine solution ensures that chlorine gas is produced instead of oxygen gas during the electrolysis process. The increased concentration favors the formation of chlorine ions, which are preferentially discharged at the anode, leading to a higher yield of chlorine gas.