The initial concentration of reactant in a first-order reaction is 0.27 M. The rate constant for the reaction is 0.75 s−1. What is the concentration (mol/L) of reactant after 1.8 s? A. 1.7 B. 0.012 C. 0.070 D. 1.0 E. 6.0

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The initial concentration of reactant in a first-order reaction is 0.27 M. The rate constant for the reaction is 0.75 s−1. What is the concentration (mol/L) of reactant after 1.8 s?

A. 1.7
B. 0.012
C. 0.070
D. 1.0
E. 6.0
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