please show all work In Part 3 of this experiment, you will show that the cataly

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please show all work

In Part 3 of this experiment, you will show that the catalyst is not consumed in the reaction. You started with 10 mL 0.1 MK in 15 mL of Dl water and 5 mL of 3% H_2O_2. After the decomposition of H_2O_2 is complete, you should end up with the same number of moles of moles of that you started with. The solution is titrated with 0.1 M AgNO to determine the moles of present. a) Write the reaction, which occurs as you this solution. b) If the catalyst, is not consumed in the reaction and is completely recovered, what volume of the 0.1 M AgNO is required to reach the end point? c) What indicator is used and how will you detect the end-point?

Explanation / Answer

3. For the decomposition of H2O2 in presence of I- followed by titration with AgNO3

a) reaction,

AgNO3 + I- --> AgI(ppt) + NO3-(aq)

b) moles of I- present = 0.1 M x 10 ml = 1 mmol

Volume of AgNO3 required = 1 mmol/0.1 M = 10 ml

c) startch indicator is used in thi titration. The end point of H2O2 decomposition is formation of puple-blue colora of starch-I2 complex.

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