In Aqueous Solution, Hypobromite Ion, BrO^-, Reacts to Produce Bromate

question 42

Multiple Choice

In aqueous solution, hypobromite ion, BrO^-, reacts to produce bromate ion, BrO₃^-, and bromide ion, Br^-, according to the following chemical equation: A plot of 1/[BrO^-] vs. time is linear and the slope is equal to 0.056 L mol^-1 s^-1. If the initial concentration of BrO^- is 0.80 mol L^-1, 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

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