Selenious acid (H2 SeO3) adiprotic acid has Kα1= 3.0x10−3 and Kα2= 5.0 x 10 −8 What is the [OH−] of a 0.30 M solution of a selenious acid?
2.85x 10 −3
5.0 x 10 −6
3.5 x 10 −12
3.5 x 10 −13
A
3.5 x 10 −12
B
2.85x 10 −3
C
5.0 x 10 −6
D
3.5 x 10 −13
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Solution
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The correct option is D 3.5 x 10 −13 [H+]total=[H+] fron first step
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