Question

Determine the rate law and the value of k for the following reaction using the data provided. S2O82-(aq) + 3 I-(aq) ® 2 SO42-(g) + I3-(aq) [S2O82-]i (M) [I-]i (M) Initial Rate (M-1s-1) 0.30 0.42 4.54 0.44 0.42 6.65 0.44 0.21 3.33 Rate = 120 M-2s-1 [S2O82-]2[I-] Rate = 36 M-1s-1 [S2O82-][I-] Rate = 86 M-2s-1 [S2O82-][I-]2 Rate = 195 M-3s-1 [S2O82-]2[I-]2 Rate = 23 M-1/2s-1 [S2O82-][I-]1/2

          Determine the rate law and the value of k for the following reaction using the data provided.

S2O82-(aq) + 3 I-(aq) ® 2 SO42-(g) + I3-(aq)

[S2O82-]i (M) [I-]i (M) Initial Rate (M-1s-1)
0.30 0.42 4.54
0.44 0.42 6.65
0.44 0.21 3.33

Rate = 120 M-2s-1 [S2O82-]2[I-]
Rate = 36 M-1s-1 [S2O82-][I-]
Rate = 86 M-2s-1 [S2O82-][I-]2
Rate = 195 M-3s-1 [S2O82-]2[I-]2
Rate = 23 M-1/2s-1 [S2O82-][I-]1/2

Determine the rate law and the value of k for the following reaction using the data provided.

S2O82-(aq) + 3 I-(aq) ® 2 SO42-(g) + I3-(aq)

[S2O82-]i (M) [I-]i (M) Initial Rate (M-1s-1)
0.30 0.42 4.54
0.44 0.42 6.65
0.44 0.21 3.33

Rate = 120 M-2s-1 [S2O82-]2[I-]
Rate = 36 M-1s-1 [S2O82-][I-]
Rate = 86 M-2s-1 [S2O82-][I-]2
Rate = 195 M-3s-1 [S2O82-]2[I-]2
Rate = 23 M-1/2s-1 [S2O82-][I-]1/2

Added by Marc B.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

06/24/2023

Step 1

First, we need to determine the order of the reaction with respect to each reactant (S2082- and I-). To do this, we can compare the initial rates when the concentration of one reactant is changed while the other is kept constant. Show more…

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Determine the rate law and the value of k for the following reaction using the data provided: S2O8^2-(aq) + 3I^-(aq) -> 2SO4^2-(g) + I3^-(aq) [S2O8^2-] (M) [I^-] (M) Initial Rate (M^-1s^-1) 0.30 0.42 4.54 0.44 0.42 6.65 0.44 0.21 3.33 Rate = 120 M^-2s^-1 [S2O8^2-]^2[I^-] Rate = 36 M^-1s^-1 [S2O8^2-][I^-] Rate = 86 M^-2s^-1 [S2O8^2-][I^-]^2 Rate = 195 M^-3s^-1 [S2O8^2-]^2[I^-]^2 Rate = 23 M^-1/2s^-1 [S2O8^2-][I^-]^1/2