The curve that represent the change in boiling point of an aqueous solution when 1 m o l e of H F is added to 1 k g of water and 1 m o l of H B r has to be identified. Concept introduction: When the vapor pressure of a pure solvent is lowered the boiling point of a solvent is raised by the presence of a nonvolatile solute and is given by Δ T b o i l i n g = ( 0.51 o C k g w a t e r m o l p a r t i c l e s ) ( m o l p a r t i c l e s k g w a t e r ) Boiling point is the temperature at which vapor pressure is equal to the 1 a t m pressure. Vapor Pressure is the pressure exerted by vapor in equilibrium with the liquid state.

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Chapter 9, Problem 9.29UKC

Interpretation Introduction

Interpretation:

The curve that represent the change in boiling point of an aqueous solution when 1 mole of HF is added to 1kg of water and 1 mol of HBr has to be identified.

Concept introduction:

When the vapor pressure of a pure solvent is lowered the boiling point of a solvent is raised by the presence of a nonvolatile solute and is given by

ΔTboiling = (0.51oCkg watermol particles)(mol particleskg water)

Boiling point is the temperature at which vapor pressure is equal to the 1 atm pressure.

Vapor Pressure is the pressure exerted by vapor in equilibrium with the liquid state.

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