We’re being asked to determine the half-life of a compound with a concentration of 0.25 M and an observed rate constant of 0.15 min–1.
Recall that half-life is the time needed for the amount of a reactant to decrease by 50% or one-half.
We don’t know the order of the reaction but we can quickly figure it out from the rate constant. Recall that the unit for the rate constant is given by:
What is the half-life of a compound with a concentration of 0.25 M and an observed rate constant of 0.15 min -1?
A. 0.038 min
B. 0.22 min
C. 0.83 min
D. 4.6 min
E. 27 min
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