cvg.cengagenow.com Kg Particle Moves Along An X-axis, Being...I Chegg. Cengage U
ID: 103197 • Letter: C
Question
cvg.cengagenow.com Kg Particle Moves Along An X-axis, Being...I Chegg. Cengage Use the Referenees to access important values if needed for this questio Match the following aqueous solutions with the appropriate letter from the column on the right. 1. 0.11 m Ah(SO4)3 A. Highest boiling point B. Second highest boiling point C. Third highest boiling point D. Lowest boiling point 2.0.27 m Nal 3.0.24 m ZnSO4 4.0.50 m Ethylene glycol(nonelectrolyte) Submit Answer Retry Entire Group 1 more group attempt remainingExplanation / Answer
Answer:
=> The elevation in boiling point elevation is a colligative property and depends upon the concentration of solute particles present.
=> Pure water has a normal boiling point of 100°C, and by adding a solute the boiling point is raised.
=> The more solute particles, the higher the boiling point.
Given
=> 0.11m Al2(SO4)3 it ionizes and produce 2 Al^+3 ions and 3 SO4^-4 ions. So total it has 5 ions
=> 0.27m NaI ionizes into Na^+ and I^- ions total 2 ions.
=> 0.24m ZnSO4 ionised into Zn^+2 and SO4^-2
=> 0.5m ethylene glycol, which is a non-electrolyte. This means one mole of solute dissolves to form 1 mole of solute particles because it does not break up (ionize) at all when it dissolves.
=> So here Al2(SO4)3 produces maximum number of ions (5) so it has highest boiling point.
=> In NaI and ZnSO4, both produces 2 ions, but concentration of NaI is more than concentration of ZnSO4. So NaI is second highest boiling point and ZnSO4 is the third highest boiling point.
=> Then ethylene glycol has lowest boiling point because it is non-electrolyte.
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