(Solution) - The chlor alkali process 35 in which seawater is electrolyzed to produce -(2025 Original AI-Free Solution)

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The chlor-alkali process,35 in which seawater is electrolyzed to produce Cl2 and NaOH, is the second most important commercial electrolysis, behind production of aluminum.

The Nafion membrane (page 384) used to separate the anode and cathode compartments resists chemical attack. Its anionic side chains permit conduction of Na+, but not anions. The cathode compartment contains pure water, and the anode compartment contains seawater from which Ca2+ and Mg2+ have been removed. Explain how the membrane allows NaOH to be formed free of NaCl.