The (approximate) van't Hoff factor

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The van’t Hoff factorConsider the situations indicated by the figures below.As far as the solvent is concerned is there any difference?The neutral molecule and the NaCl are taking up the samenumber of positions. Shown, however are 12 neutralmolecules but only 6 formula units of NaCl.Thus, for NaCl the number of moles dissolved needs to bemultiplied by 2!neutralmoleculeNa + ionCl ion}Water solutions
The van’t Hoff factorThis factor of 2 for NaCl is the (approximate) van’t Hoff factor.This factor, given the symbol “i ”, is greater than 1 for allstrong electrolytes.
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The (approximate) van't Hoff factor

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