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It takes 41.0 min for the concentration of a reactant in a first-order reaction to drop...

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Question

Chemistry

It takes 41.0 min for the concentration of a reactant in afirst-order reaction to drop from 0.430 M
to 0.310 M at 25.0 oC. How long will it takefor the concentration to reach 0.126 Molar?

153   min

60.2   min

87.2 min

0.368 min

71.3   min

50.4 min

5.20 x 102 min

16.9 min

Answer & Explanation Solved by verified expert
4.0 Ratings (649 Votes)
Consider a given reaction A ProductsFor above first order reaction we have k 2303 t log A0 A tWhere t is a time of reaction k    See Answer
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