Concept explainers
(a)
Interpretation:
The molar mass of the solute is to be calculated.
Concept introduction:
The boiling point of the substance is the temperature at which the vapor pressure of the liquid becomes equal to the atmospheric pressure and the liquid changes into a vapor. Liquids can change into vapors at temperatures below the boiling point through evaporation. It is the process that occurs on the liquid surface due to which it changes into vapors. It is a colligative property because it depends on the number of moles of solute particles that are present in the substance.
The formula to calculate the change in boiling point is as follows:
Here,
(b)
Interpretation:
The molar mass of the solute is to be calculated.
Concept introduction:
The boiling point of the substance is the temperature at which the vapor pressure of the liquid becomes equal to the atmospheric pressure and the liquid changes into a vapor. Liquids can change into vapors at temperatures below the boiling point through evaporation. It is the process that occurs on the liquid surface due to which it changes into vapors. It is a colligative property because it depends on the number of moles of solute particles that are present in the substance.
The formula to calculate the change in boiling point is as follows:
Here,
(c)
Interpretation:
The difference between the actual formula mass and that calculated from the boiling point elevation is to be explained.
Concept introduction:
The boiling point of the substance is the temperature at which the vapor pressure of the liquid becomes equal to the atmospheric pressure and the liquid changes into a vapor. Liquids can change into vapors at temperatures below the boiling point through evaporation. It is the process that occurs on the liquid surface due to which it changes into vapors. It is a colligative property because it depends on the number of moles of solute particles that are present in the substance.
(d)
Interpretation:
The van’t Hoff factor for the solution is to be calculated.
Concept introduction:
The formula to relate the elevation in boiling point and van’t Hoff factor is as follows:
Here,
Want to see the full answer?
Check out a sample textbook solutionChapter 13 Solutions
CHEMISTRY THE MOLECULAR NATURE OF MATTER
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY