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Nancy Sandhu
Asked: 2022-11-07T20:39:37+05:30 In:

`7.36g` of a mixture of `KCI` and KI was dissolved in `H_(2)O` to prepare 1 litre solution 25 ml of this required `8.45 ml` of `0.2N AgNO_(3)`, what is % of KI in mixture ?
A. `57.28`
B. `47.28`
C. `5.72`
D. `149.12`

`7.36g` of a mixture of `KCI` and KI was dissolved in `H_(2)O` to prepare 1 litre solution 25 ml of this required `8.45 ml` of `0.2N AgNO_(3)`, what is % of KI in mixture ?
A. `57.28`
B. `47.28`
C. `5.72`
D. `149.12`
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1 Answer

  1. Correct Answer – A
    geq of `KI +KCl` mixture =geq of `AgNO_(3)`
    `xg (7.36 -x)g`
    `((x)/(166)+(7.36-x)/(74.5)) = (8.45 xx 0.2 xx 40)/(1000)`
    `:.` On solving `x = 4.216g`
    `:. %` of `KI 57.28%`

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