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Why should we titrate iodine with a BASE ?

Which method would be most suitable to investigate the rate of the followingreactions?

A quenching, followed by titration with base
B collecting and measuring the volume of a gas
C quenching, followed by titration with acid
D quenching, followed by titration with iodine solution.

(a) H2O2(aq) + 2I(aq) + 2H+(aq) 2H2O(l) + I2(aq)

So my friend gave me this question and the answer was A
But why do we titrate iodine with base and not with acid for instance? :smile:

Reply 1

Pigster

The reaction is :h:

2O2(aq) + 2I(aq) + 2H+(aq) -> 2H2O(l) + I2(aq)

Over time, the conc. of H+ will decrease (it is on the LHS). Therefore, over time, you will need less OH- to neutralise.

Reply 2

Adorable98

Original post by Pigster

The reaction is :h:

2O2(aq) + 2I(aq) + 2H+(aq) -> 2H2O(l) + I2(aq)

Over time, the conc. of H+ will decrease (it is on the LHS). Therefore, over time, you will need less OH- to neutralise.