Question 18%3DFor the reaction below, we are told the overall rate order = 3.->+ H3ASO4(aq) +2 H* (ag) 13 (ag) +H3ASO3(aq) + H2OWWhich 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.EscF1F2F3F4F5@23$415QWTab团

The balanced reaction is – 3I-aq+H3AsO4aq+ 2H+aq →I3-aq +H3AsO3aq + H2Ol

Answered: Question 18 %3D For the reaction below,…

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter7: Reaction Rates And Chemical Equilibrium

Section: Chapter Questions

Problem 7.61P

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Expert Solution

Step 1

The balanced reaction is –

$3 I^{-} (aq) + H_{3} {AsO}_{4} (aq) + 2 H^{+} (aq) \to {I_{3}}^{-} (aq) + H_{3} {AsO}_{3} (aq) + H_{2} O (l)$

Step 2

Order of the reaction is given = 3

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

$\begin{array}{rcl} (a) Rate & = & k {[I^{-}]}^{2} {[H_{3} {AsO}_{4}]}^{2} {[H^{+}]}^{- 1} \\ order & = & 2 + 2 + (- 1) = 3 \\ (b) Rate & = & k {[I^{-}]}^{2} [H_{3} {AsO}_{4}] [H^{+}] \\ order & = & 2 + 1 + 1 = 4 \\ (c) Rate & = & k {[I^{-}]}^{2} [H_{3} {AsO}_{4}] [H^{+}] \\ order & = & 2 + 1 + 1 = 4 \end{array}$