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Homework Help: Calculate molar conductivity of Co(NH3)4CO3]NO3?

  1. Nov 17, 2012 #1
    1. The problem statement, all variables and given/known data
    This was determined from an experiment,where the resistance of 0.02M of KCl was to be determined
    [KCl]=0.02M conductance=2.86ms L=0.002768ohm^-1 to obtain k

    Co(NH3)4CO3]NO3 :
    conductance: 1.923ms concentration of cobalt complex: 0.002M

    2. Relevant equations
    k=RL Molar conductivity=1000L/M

    3. The attempt at a solution
    k=RL k=(2.86ms)(0.002768ohm^-1)
    k=0.00791648 ms/cm ohm^-1

    L=k/R =0.00791648ms/cm ohm^-1/0.1923ms
    L=0.041167cm x ohm^-1
    molar conductivity=1000(0.041176)/0.002M
    =19712.8cm Xohm^-1 / M x 1m/100cm
    =197.1 m x ohm^-1/M

    Not sure if i did it correctly
    Last edited: Nov 17, 2012
  2. jcsd
  3. Nov 17, 2012 #2


    User Avatar

    Staff: Mentor

    It won't hurt if you will name your variables and describe the data you were given.

    We could try to guess them from the units and the way you are using them, but - speaking for myself - I have much better brain teasers to play with.
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