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  • The rate constant of zero order reaction is <img alt="\mathrm{4.0 \times 10^{-2} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7B4

The rate constant of zero order reaction is \mathrm{4.0 \times 10^{-2} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}. If the concentration of the reactant after 20 seconds in \mathrm{0.6 \mathrm{M}}. Calculate its initial concentration?

Option: 1

1.4 M


Option: 2

2.6 M


Option: 3

303 M


Option: 4

4.3 M


Answers (1)

best_answer

For a zero order reaction Rate Constant.
\mathrm{ \begin{gathered} k=\frac{a-x}{t} \\ 4.0 \times 10^{-2}=\frac{a-0.6}{20} \\ 4.0 \times 10^{-2} \times 20=a-0.6 \\ a=1.4\, \mathrm{M} \end{gathered} }

Posted by

Irshad Anwar

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