2
$\begingroup$

I'm having some confusion related to the terms mentioned in the title. Suppose we have a strong electrolyte but with a very low solubility.

Therefore a given amount of it will not be able to produce lots of ions because less of it will go into solution and dissociate, so what do we call this type of electrolyte overall: a weak electrolyte as it didn't produce many ions or a strong electrolyte as whatever that did dissolve produced as many ions as it can dissociate into?

$\endgroup$
9
  • $\begingroup$ Not dissolved part does not count. If you mix 100 mL of water and 100 kg of NaCl, does it make it weak electrolyte,because majority is not dissolved ? $\endgroup$
    – Poutnik
    Jun 27, 2021 at 6:51
  • $\begingroup$ @Poutnik if you dissolve 100kg of NaCl in 100L of water then also it will be a strong electrolyte and solution will be fairly conducting but if you dissolve equimolar amount of electrolyte of type OP considers in question in same amount of water, it will not be a fairly conducting solution , In that case how can you say that the considered electrolyte is strong? $\endgroup$
    – Lalit
    Jun 27, 2021 at 7:01
  • 4
    $\begingroup$ Does this answer your question? How can an insoluble compound be a strong electrolyte $\endgroup$ Jun 27, 2021 at 7:06
  • $\begingroup$ @Lllt By evaluating molar conductivity, related to total solution concentration. Strong electrolytes have molar conductivity corresponding to ion conductivities at given concentration. Weal electrolytes have molar conductivity much lower. // The mistake is evaluation of conductivity instead of molar conductivity. By this way 0.000001 M NaCl would be weak electrolyte as well. $\endgroup$
    – Poutnik
    Jun 27, 2021 at 7:21
  • 1
    $\begingroup$ @Lllt Yes, similarly as listed in the referred duplicate question. $\endgroup$
    – Poutnik
    Jun 27, 2021 at 9:24

0