PLEASE HELP! I WILL RATE LIFESAVER! x Chegg Study | Guided Se C chegg.com x M Ho

Question

PLEASE HELP! I WILL RATE LIFESAVER!

x Chegg Study | Guided Se C chegg.com x M Homework Sections 142 X | erto.mheducation.com/hm.tpx MCC RUJOBSSocial Media CATS Discover AESOP M CONNECT 2 attempts left Check my work Be sure to answer all parts. The reaction of peroxydisulfate ion (S20s) with iodide ion a) is SiOS2-(aq) + 3(aq) 2so,2-(aq) + 13-(aq) From this data collected at a certain temperature, calculate the rate constant. Ms Initial Rate Exp. (M (M/s) li Loss | 0.0800 0.0340|2.40 x 10 | 0.0170 | 1.20 × 10-4 0.160 0.0170 2.40 x 10 References eBook& Resources

Explanation / Answer

see experiment 2 and 3:

[S2O82-] doubles

[I-] is constant

rate doubles

so, order of S2O82- is 1

see experiment 2 and 1:

[S2O82-] is constant

[I-] doubles

rate doubles

so, order of I- is 1

Put values from 1st row of table in rate law

rate = k*[S2O82-]*[I-]

2.4*10^-4 = k*0.08*0.034

k = 0.0882 M-1.s-1

Answer: 0.0882 M-1.s-1

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