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^$\circ$C. How long will it take for the reaction to be 90% complete

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The Answer of 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^$\circ$C. How long will it take for the reaction to be 90% complete

It Takes 42 ∘\circ∘ C How Long Will It Take for the Reaction to in a First-Order

It Takes 42 $\circ$ C How Long Will It Take for the Reaction to in a First-Order