The apparatus shown in the diagram below were used to investigate the products formed when concentrated sodium chloride was electrolyzed using inert electrodes

      

The apparatus shown in the diagram below were used to investigate the products formed when concentrated sodium chloride was electrolyzed using inert electrodes
42concentratedsodium4252017845.jpg
a) Write the equation for the reaction that takes place at electrode A.
b) If the concentrated sodium chloride was replaced with dilute sodium chloride, what product would be formed at electrode A? Explain.

  

Answers


John
a) $2Cl^-_{(aq)} \rightarrow 2e^- + Cl_{2(g)}$

b) Products: Oxygen and water

When dilute sodium chloride is used, hydroxide ions are discharged and not chloride.
johnmulu answered the question on May 15, 2017 at 08:59


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