Question 18 %3D For the reaction below, we are told the overall rate order = 3. -> + H3ASO4(aq) +2 H* (ag) 13 (ag) +H3ASO3(aq) + H2OW Which of the following is the correct rate law? O Rate-k[r7?{H3ASO4]²t+*y! O Rate-k[I7?(H3A5O4][H*] O Rate-k[r7?{H3ASO4I+*] Rate-k['7°IH3A5O4][H? O Rate-k[I7?{H3A5O4]? A Moving to another question will save this response. Esc F1 F2 F3 F4 F5 @ 23 $4 1 5 Q W Tab 团

Chemistry by OpenStax (2015-05-04)
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Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
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Chapter12: Kinetics
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Problem 34E: Use the data provided in a graphical method to determine the order and rate constant of the...
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Question 18
%3D
For the reaction below, we are told the overall rate order = 3.
->
+ H3ASO4(aq) +2 H* (ag) 13 (ag) +H3ASO3(aq) + H2OW
Which of the following is the correct rate law?
O Rate-k[r7?{H3ASO4]²t+*y!
O Rate-k[I7?(H3A5O4][H*]
O Rate-k[r7?{H3ASO4I+*]
Rate-k['7°IH3A5O4][H?
O Rate-k[I7?{H3A5O4]?
A Moving to another question will save this response.
Esc
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23
$4
1
5
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W
Tab
团
Transcribed Image Text:Question 18 %3D For the reaction below, we are told the overall rate order = 3. -> + H3ASO4(aq) +2 H* (ag) 13 (ag) +H3ASO3(aq) + H2OW Which of the following is the correct rate law? O Rate-k[r7?{H3ASO4]²t+*y! O Rate-k[I7?(H3A5O4][H*] O Rate-k[r7?{H3ASO4I+*] Rate-k['7°IH3A5O4][H? O Rate-k[I7?{H3A5O4]? A Moving to another question will save this response. Esc F1 F2 F3 F4 F5 @ 23 $4 1 5 Q W Tab 团
Expert Solution
Step 1

The balanced reaction is –

3I-aq+H3AsO4aq+ 2H+aq I3-aq +H3AsO3aq + H2Ol

Step 2

Order of the reaction is given = 3

Order is obtained by addition of powers of concentration mentioned in the rate law.

a Rate = k I-2 H3AsO42H+-1order = 2+2+-1= 3(b) Rate = k I-2 H3AsO4H+order = 2+1+1 = 4(c) Rate = k I-2 H3AsO4H+order = 2+1+1 = 4

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