VIT Engineering VIT Engineering Solved Paper-2010

  • question_answer
    The equivalent conductance at infinite dilution of a weak acid such as HF

    A)  can be determined by extrapolation of measurements on dilute solutions of \[HCl\],\[HBr\] and \[HI\]

    B)  can be determined by measurement on very dilute HF solutions

    C)  can   best   be   determined   from measurements on dilute solutions of \[NaF\],\[NaCl\] and \[HCl\]

    D)  is an undefined quantity

    Correct Answer: C

    Solution :

     According to Kohlrauschs law, equivalent conductance at infinite dilution of HF, \[\wedge _{HF}^{1\to 0}=\wedge _{NaF}^{1\to 0}+\wedge _{HCl}^{1\to 0}-\wedge _{NaCl}^{1\to 0}\]


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