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The extent to which an electrolyte can d...

The extent to which an electrolyte can dissociate inot ions is called _____

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degree of dissociation
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The colligative properties of electrolytes require a slightly different approach than the one used for the colligative properties of non-electrolytes. The electrolytes dissociate into ions in a solution. It is the number fo solute particles that determines the colligative properties of a solution. The electrolyte solutions, therefore, show abnormal colligative properties. To account for this effect we define a quantity called the van't Hoff factor, given by : i=("Actual number of particles in solution after dissociation")/("NUmber of formula units initially dissolved in solution") i=1 (for non-electrolytes) , i gt 1 (for electrolytes, undergoing dissociation) i lt 1 (for solutes, undergoing association). The molare mass of the solute sodium hydroxide obtained from the measurement of the osmotic pressure of its aqueous solution at 27^(@)C is 25 "g mol"^(-1) . Therefore, its dissociation percentage in this solution is :

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PEARSON IIT JEE FOUNDATION-Electrochemistry-Level 1
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