relative rate = k [I - ] [BrO 3 - ] [H + ] 2 1) For the following rates, find th
ID: 485833 • Letter: R
Question
relative rate = k [I-] [BrO3-] [H+]2
1) For the following rates, find the value of k.
a) rate = 11.11 Concentration of [I-]0.002. Concentration of [BrO3-]is 0.008. Concentration of [H+]is 0.02.
b) rate = 23.81 Concentration of [I-]0.004. Concentration of [BrO3-]is 0.008. Concentration of [H+]is 0.02.
c) rate = 22.22 Concentration of [I-]0.002. Concentration of [BrO3-]is 0.016. Concentration of [H+]is 0.02
d) rate = 47.62 Concentration of [I-] 0.002.Concentration of [BrO3-] is 0.008. Concentration of [H+]is 0.04
2) Calculate k mean and find the standard deviation
3) Why should k have nearly the same value for each of the reactions above
Explanation / Answer
1)
a)
rate = k [I-] [BrO3-] [H+]2
11.11 = k [0.002][0.008][0.02]^2
k = 1.74 x 10^9
b)
rate = k [I-] [BrO3-] [H+]2
23.81= k [0.004][0.008][0.02]^2
k = 1.86 x 10^9
c)
similarly substitute the values in rate equation. we get
k = 1.74 x 10^9
d)
k = 1.86 x 10^9
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