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A certain reactant disappears by a first order reaction that has a rate constant K= 3.5x10^-3 s-1. If the initial concentration of the reactant is 0.500 M , how long will it take for the concentration to drop to
0.200 M ?

4. A certain reactant disappears by a first-order reaction that has a rate constant k=3.5 x 10 s. If the initial concentratio
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In case reaction, of ist or den Ak products Rate lan K = Rate constant expression - d[A] d7 K[A] integrate form, da dt = rate

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