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In the hydrogen of propyl acetate in pre...

In the hydrogen of propyl acetate in presence of dilute HCl in aqueous solution. The following data were recorded.
`{:("Time from start ( in minute)",60,350),(% "of ester decomposed",18.17,69.12):}`
Calculate the rate constant of decomposition and time in in which half of the ester was decomposed.

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The correct Answer is:
`3.34xx10^(-3)"min"^(-1);207. "min"`
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