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How do I calculate the inicial concentration of​​ I^- and S2O8^2- in each mixture, the reaction...

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Chemistry

How do I calculate the inicial concentration of​​ I^-and S2O8^2- in each mixture, the reaction rate M/s, and the k value(rate constant) from the following data???? IODINE CLOCKREACTION

Run #3% Starch0.012 M Na2S2O3 mL0.20 M KI mL0.20 M KNO3 mL0.20 M (NH4)2SO4 mL0.20 M (NH4)2S2O8 mLTotal mL
12 drops0.2000.8000.2000.4002.00
22 drops0.2000.4000.6000.4002.00
32 drops0.2000.2000.8000.4002.00
42 drops0.2000.4000.6000.002.00
52 drops0.2000.4000.6000.6002.00

Run#1-time was 41.45 sec   Run#2-time was 120.48sec   Run#3-231.64 sec   Run#4-36.88sec    Run#5-231.70 sec

Answer & Explanation Solved by verified expert
4.3 Ratings (601 Votes)
For Run1Initial moles of I added 02 08 016mmolesInital concentration of I 016 2 008 MInitial moles of S2O82 added 02 04 008 mmolesInital concentration of S2O82 008 2 004 MThe rates for the reactions    See Answer
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