Constants |Periodic Table Part A Consider the balanced chemical equation. H202(a

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Constants |Periodic Table Part A Consider the balanced chemical equation. H202(aq) +3I (aq) +2Ht (a) I (aq) +2H20(0) In the first 13.0 s of the reaction, the concentration of I drops Predict the rate of change in the concentration of H2O2 (?[H2021/an Express the rate to three significant figures and include the appropriate units. rom 1.000 M to 0.803 M You may want to reference (Pages 587-592) Section 14.3 while completing this problem. ae Units Submit Request Answer Part B Predict the rate of change in the concentration of Is (AlLs /At) Express the rate to three significant figures and include the appropriate units. ?13 l/A+ Value Units

Explanation / Answer

Rate = - d[H2O2]/dt = ( - 1/3 ) * d[I-]/dt = - (1/2) * d[H+]/dt = +d[I3-]/dt = (1/2)d[H2O]/dt

SO,

d[H2O2] / dt = - (1/3)*(0.803 - 1.000) / 13.0 = 0.00505 M/s

d[I3-]/dt = d[H2O] / dt = (1/3)d[I-]/dt = 0.00505 M/s

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