A 0.2 M Solutions of formic acid is 3.2% ionsed so what is its ionisat

1.	A 0.2 M Solutions of formic acid is 3.2% ionsed so what is its ionisation constant
Answer» K aplha={C (alpha) ^2}/1-alpha. Here C=0.2M.aplha=3.2%.HCOOH=H++COOH- K aplha=[COOH-][H+]/[HCOOH] =(C aplha X C aplha) /C (1-aplha) =(0.2 x 0.032)^2/(0.2 x 0.968) =2.1 x 10^-4 is CORRECT answer

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