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NEET-XII-Chemistry

03: Electrochemistry

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  • #9
    The molar conductivity of 0.025 mol L-1 methanoic acid is

    46.1 S cm2 mol-1.

    Calculate its degree of dissociation and dissociation constant. Given λ °(H+)

    = 349.6 S cm2 mol-1 and λ °(HCOO-) = 54.6 S cm2 mol
    Ans : C = 0.025 mol L-1



    Now, degree of dissociation:



    Thus, dissociation constant: