A 1 molal solution has a degree of dissociation of 0.4. Its boiling point is equal to that of another solution which contains 18.1 weight percent of a non electrolytic solute A. The molar mass of A i

Question

A 1 molal  solution has a degree of dissociation of 0.4. Its boiling point is equal to that of another solution which contains 18.1 weight percent of a non electrolytic solute A. The molar mass of A is  u. (Round off to the Nearest Integer). [Density of water = 1.0 g cm⁻³]

Canvas Classes · Accepted Answer

Strategy:
 Equality of boiling points in the same solvent implies identical effective molalities (). Calculate the effective molality for the complex and use it to solve for the molar mass of solute A.

Step 1: Calculate } i \cdot m 	ext{ for complex
 ions. .

Since , effective molality .

Step 2: Relate to solute A
Solution is 18.1% w/w.
- Mass of solute = 18.1 g.
- Mass of solvent .
Effective molality of non-electrolyte A ():

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