In a `0.2M` aqueous solution of Ethylene diamine `(H_(2)NCH_(2)CH_(2)NH_(2)):` Given `K_(b_(1))=8xx10^(-5)` & `K_(b_(2))=2.7xx10^(-8)`
In a `0.2M` aqueous solution of Ethylene diamine `(H_(2)NCH_(2)CH_(2)NH_(2)):`
Given `K_(b_(1))=8xx10^(-5)` & `K_(b_(2))=2.7xx10^(-8)`
A. `[OH^(-)]=2xx10^(-2)M`
B. `[C_(2)N_(2)H_(10)^(2+)]=2.7xx10^(-8)M`
C. Both (A) and (B)
D. None of these
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`[OH^(-)]=sqrt(K_(b_(1))xxC)=sqrt(1.6xx10^(-5))=4xx10^(-3)M`
`K_(b_(1))xxK_(b_(2))=([OH^(-)]^(2)[C_(2)H_(10)N_(2)^(2+)])/([C_(2)H_(6)H_(8)])rArr 8xx2.7xx10^(-13)=(16xx10^(-3)[C_(2)H_(10)N_(2)^(2+)])/(0.2)`
`:.[C_(2)H_(10)N_(2)^(2)]=2.7xx10^(-8)M`
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