Questions in conductivity of solutions

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Discussion Overview

The discussion revolves around the conductivity of solutions, specifically focusing on an experiment involving acids and their conductance. Participants seek clarification on calculating molar conductivity and the classification of acids according to Kohlrausch's law.

Discussion Character

  • Homework-related
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant inquires about how to derive molar conductivity from given results of acid concentration and conductance.
  • Another question asks whether Mandelic acid and HCl obey Kohlrausch's law and their classification as strong or weak acids.
  • A request for the literature value of HCl is made.
  • Some participants suggest that the experiment's questions may depend on specific experimental results, indicating a need for further discussion.
  • A participant notes that HCl is a strong acid, but does not provide further details on the other acids mentioned.

Areas of Agreement / Disagreement

There is no consensus on the answers to the questions posed, and multiple competing views remain regarding the classification of acids and the application of Kohlrausch's law.

Contextual Notes

The discussion lacks specific experimental data that may be necessary for answering the questions raised. There are also assumptions about the definitions of strong and weak acids that have not been explicitly stated.

DW_1983
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Hi everyone :)

please I need help to show me what to do with these points related to the conductivity of solutions experiment :

1- results I got from this experiment are the acid in mol dm and the conductance in mS.

however, how can I get the aci in mol m,square root of the acid in mol/dm and the molar conductivity?

2- In Kohlrausch's law, do Mandelic acid and HCL obey the equation and are they strong or weak acids?

3- What's the literature value of HCL?

Thanks
 
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what course is this for?
 
it's for chemlab (physical chem.) experiments...
 
I've not taken physical chem before...here's a link, hopefully it'll refresh your memory. Otherwise, chemtr or someone else should be able to help you out.

http://chem.ch.huji.ac.il/~eugeniik/history/kohlrausch.htm

By the way HCl is a strong acid. The experiment seems simple enough, I may be able to assist you with the problem, yet I don't have the complete info on this subject with me at this time. You can try explaining it more extensively. Also it seems that some of the questions actually depend upon your experimental results, you should discuss these also.
 
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