A solution containing 10 g of an electrolyte in 100 g of water boils at 100.52°C. The degree of ionization of the electrolyte is . (nearest integer)

[Given: Molar mass of = 200 g mol⁻¹, (molal bo

Question

A solution containing 10 g of an electrolyte  in 100 g of water boils at 100.52°C. The degree of ionization of the electrolyte  is . (nearest integer)

[Given: Molar mass of  = 200 g mol⁻¹,  (molal boiling point elevation const. of water) = 0.52 K kg mol⁻¹, boiling point of water = 100°C;  ionises as ]

Canvas Classes · Accepted Answer

Strategy:
 Relate the boiling point elevation to the van't Hoff factor (). Use  to determine the degree of ionization () for the electrolyte .

Step 1: Determine elevation in boiling point ()

Step 2: Calculate the molality
- Moles solute 
- Mass of solvent

Step 3: Calculate van't Hoff factor ()
 where .

Step 4: Calculate degree of ionization ()
 ().

Step 5: Express as 
.

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