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H(2)O(2(aq)) decomposes to H(2)O((l))and...

`H_(2)O_(2(aq))` decomposes to `H_(2)O_((l))and O_(2(g))` in a first reaction w.r.t. `H_(2)O_(2).` The rate constant is `k=1.06 xx10^(-3) "min" ^(-1).` How long it will take `15%` of the sample of defcompose ?

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`k=1.06xx10^(-3)min ^(-1).`
`a=100`
`a-x =100-15 =85`
`k=(2.303)/(t)log ""(a)/(a-x)`
`1.03xx10^(-3)=(2.303)/(t)log ""(100)/(85) `
`t=(2.303)/(1.06xx10^(-3))log ""(100)/(85) =153.4 min`
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