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 be

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

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 be
Answer» `7.13 xx 10^(-2) M` `7.13 xx 10^(-3) M` `7.13 xx 10^(-5) M` `7.13 xx 10^(-6) M` Solution :`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)`