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H(2)O(2)+H(2)O+1/2O(2) (1st order). Ti...

`H_(2)O_(2)+H_(2)O+1/2O(2)` (1st order).
Time to time the `H_(2)O_(2)` solution is titrated with standard acidified `KMnO_(4)`. The data is
Time (min ) `" "0" "15`
`KMnO_(4)"consumed")" "16ml" "2ml`
What is half life in minutes?

Text Solution

Verified by Experts

The correct Answer is:
5
`H_(2)O_(2)toH_(2)O+1/2O_(2)&KMNO_(4)`
`t_(1)=0" "C_(0),t_(2)=15C_(0)-x,t_(3)=alpha" "0`
`Kxxt=2.303xxlog((C_(0))/(C_(t))),0.693/((t_(1/2)))xx15=2.303xxlog(16/2),(t_(1/2))=(0.693xx16)/(2.303xx3xx0.3010)=5`
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