Answer Posted / prabhakaran
pH values above 8.5, the
-d[I2]/dt = k • [I2] • [SO2] • [H2O]
Good Titration PracticeTM in KF Titration
reaction rate increases due to side reactions between iodine and hydroxide or methylate ions;
in a titration, this results in a more sluggish endpoint and higher iodine consumption
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