The molar conductivity of 0.025 mol L^-1...

The molar conductivity of `0.025 mol L^-1` methanoic acid is `46.1 S cm^2 mol^-1`. Calculate its degree of dissociation and dissociation constant. Given `lambda^@(H^+) = 349.6 S cm^2 mol^-1` abd `lamda^@(HCOO-) = 54.6 S cm^2 mol`.

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