Multiple Choice
It takes 42.0 min for the concentration of a reactant in a first-order reaction to drop from 0.45 M to 0.32 M at 25°C.How long will it take for the reaction to be 90% complete?
A) 13.0 min
B) 86.0 min
C) 137 min
D) 222 min
E) 284 min
Correct Answer:
Verified
Correct Answer:
Verified
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