General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 13 - Rates of Reaction - Questions and Problems - Page 577: 13.6


Please see the work below.

Work Step by Step

We know that the rate law for the reaction of iodide ion arsenic acid and hydrogen ion is given as $Rate=K[I^{-}][H_3AsO_4][H^{+}]$ and thus the overall order is $1+1+1=3$ that is third order.
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