The `[H^(+)]` in a solution containing `0.1 M HCOOH` and `0.1 M HOCN` [Ka for `HCOOH` and `HOCN` are `1.8 xx 10^(-4)` and `3.3 xx 10^(-4)`] respectively will beA. `7.13 xx 10^(-2) M`B. `7.13 xx 10^(-3) M`C. `7.13 xx 10^(-5) M`D. `7.13 xx 10^(-6) M`

The `[H^(+)]` in a solution containing `0.1 M HCOOH` and `0.1 M HOCN`

1.	The `[H^(+)]` in a solution containing `0.1 M HCOOH` and `0.1 M HOCN` [Ka for `HCOOH` and `HOCN` are `1.8 xx 10^(-4)` and `3.3 xx 10^(-4)`] respectively will beA. `7.13 xx 10^(-2) M`B. `7.13 xx 10^(-3) M`C. `7.13 xx 10^(-5) M`D. `7.13 xx 10^(-6) M`
Answer» Correct Answer - B `underset((0.1-x))(HCOOH)hArr underset((x+y))(H^(o+))+underset(x)(HCOOO^(o+))` `underset((0.1-y))(HOCN)hArr underset((x+y))(H^(o+))+underset(y)(OCN^(o+))` `K_(HCOOH)= ([H^(+)][HCOO^(-)])/([HCOOH]) = 1.8 xx 10^(-4)` `K_(HOCN) = ([H^(+)][OCN^(-)])/([HOCN]) = 3.3 xx 10^(-4)`

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The `[H^(+)]` in a solution containing `0.1 M HCOOH` and `0.1 M HOCN` [Ka for `HCOOH` and `HOCN` are `1.8 xx 10^(-4)` and `3.3 xx 10^(-4)`] respectively will beA. `7.13 xx 10^(-2) M`B. `7.13 xx 10^(-3) M`C. `7.13 xx 10^(-5) M`D. `7.13 xx 10^(-6) M`

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