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Determining the composition of a coordination compound using molar conductivity

  • Thread starter cncbmb
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  • #1
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Homework Statement



The substance CoBr3 dot 4 NH3 dot 2 H2O ha a molar conductivity of 42 kS/m at infinite dilution. Indicate the composition of the coordination sphere.

Homework Equations



I don't know any relevant equations.

The Attempt at a Solution



Where can we read about how molar conductivity can tell us the composition of a coordination sphere? I googled this and have not found a tutorial on how to do this type of question.

I don't recall molar conductivity being mentioned in my high school chemistry class when we did coordination spheres.
 

Answers and Replies

  • #2
Borek
Mentor
28,303
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There is no direct link, however, think how the molar conductivity depends on the ions present in the solution - types, numbers, charges... Once you can estimate what ions are present, you can conclude how the complex looks.

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