The rate constant for a zero order reaction i | vedclass

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(B) For a zero order reaction,the integrated rate equation is given by: $[R] = [R]_0 - kt$Where:$[R]$ is the concentration of the reactant at time $t

Vedclass · Accepted Answer

$1.25$

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(B) For a zero order reaction,the integrated rate equation is given by: $[R] = [R]_0 - kt$Where:$[R]$ is the concentration of the reactant at time $t = 0.5 \ M$$[R]_0$ is the initial concentration of the reactant$k$ is the rate constant $= 3 	imes 10^{-2} \ mol \ L^{-1} \ s^{-1}$$t$ is the time $= 25 \ s$Substituting the values into the equation:$0.5 = [R]_0 - (3 	imes 10^{-2} 	imes 25)$$0.5 = [R]_0 - 0.75$$[R]_0 = 0.5 + 0.75$$[R]_0 = 1.25 \ M$

The rate constant for a zero order reaction is $3 \times 10^{-2} \ mol \ L^{-1} \ s^{-1}$. After $25 \ s$,if the concentration of the reactant is $0.5 \ M$,then the initial concentration of the reactant is ............ $M$.

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