A 0.35 m aqueous solution of an unknown solute has a boiling point elevation of 0.79°C.The boiling point elevation of a 0.35 m solution of a nonionizing molecular solute in water is 0.33°C.How many moles of particles are formed per mole of solute when the unknown solute is dissolved in water?
A)1.4
B)2.0
C)2.4
D)3.0

Question

Quizplus · Accepted Answer

The boiling point elevation is proportional to the number of particles in solution. The unknown solute causes a greater elevation (0.79°C) than the nonionizing solute (0.33°C), indicating it dissociates into more particles. The ratio of 0.79/0.33 is approximately 2.4, suggesting 2.4 moles of particles are formed per mole of solute.

A 035 M Aqueous Solution of an Unknown Solute Has a a Boiling