In Aqueous Solution,hypobromite Ion,BrO^-,reacts to Produce Bromate Ion,BrO₃^-,and Bromide Ion,Br^-,according

In aqueous solution,hypobromite ion,BrO^-,reacts to produce bromate ion,BrO₃^-,and bromide ion,Br^-,according to the following chemical equation.
3 BrO^-(aq) → BrO^-(aq) + 2 Br^-(aq)
A plot of 1/[BrO^-] vs.time is linear and the slope is equal to 0.056 M^-1s^-1.If the initial concentration of BrO^- is 0.80 M,how long will it take one-half of the BrO^- ion to react?

A) 4.5 × 10^-2 s
B) 7.1 s
C) 12 s
D) 22 s

Correct Answer:

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