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Module 5 Chapter 23 (23.3 Iodine/ Thiosulfate (Analysis of copper…
Module 5 Chapter 23
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23.3 Iodine/ Thiosulfate
Iodine is reduced, thiosulfate is oxidised
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Add excess potassium iodide to conical flask as an indicator, changes solution to yellow-brown
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Analysis of copper
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3) React with iodine (Copper reduced and iodine oxidised) 2Cu2+ (aq) + 4I- (aq) -> 2CuI (aq) + I2 (aq)
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