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`H_(3)A` is a weak triprotic acid `(K_(a_(1))=10^(-5),K_(a_(2))=10^(-9),K_(a_(3))=10^(-13))`. What is the value of `(pX)/(10)` of 0.1 M `H_(3)A` (aq) solution? Where pX =- logX and X = `([A^(3-)])/([HA^(2-)])` |
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Answer» Correct Answer - 4 `-DeltaH_(f)=129.13(Deltax)^(2)` `516.52 = 129.13 (Deltax)^(2)` `(Deltax)^(2)=4` `Delta_(x)=2=|x_(A)-x_(B)|` Given `x_(H) = 2` Hence E. N. of X is = 4 |
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