Interpretation:
The solution with the highest molarity and highest density needs to be identified from 1.0 g KCl in 1.0 L water, 5.0 g KCl in 0.5 L water and 10.0 g KCl in 0.3 L.
Concept Introduction:
Molarity is defined as the moles of solute in 1-liter volume of a solution
The density of a solution is the ratio of its mass and volume i.e.
Answer to Problem 4E
The solution of 10.0 g KCl in 0.3 L water has the highest molarity and density.
Explanation of Solution
a)
Given:
Mass of KCl = 1.0 g
The volume of water solvent = 1.0 L
Calculation:
Based on equation (1) and (2):
Molar mass of KCl = 74.55 g/mol
b)
Given:
Mass of KCl = 5.0 g
The volume of water solvent = 0.5 L
Calculation:
Based on equation (1) and (2):
Molar mass of KCl = 74.55 g/mol
c)
Given:
Mass of KCl = 10.0 g
The volume of water solvent = 0.3 L
Calculation:
Based on equation (1) and (2):
Molar mass of KCl = 74.55 g/mol
The solution of 10.0 g KCl in 0.3 L water has the highest density.
Molarity can be expressed in terms of the solution density and solute molecular weight by combining equations (3) and (4) i.e.
Therefore,the molarity of a solution is directly proportional to its density.
Since 10.0 g of KCl in 0.3 L of water has the highest molarity; correspondingly it will also have the highest density.
The solution of 10.0 g of KCl in 0.3 L of water has the highest molarity and the highest density.
Chapter U4 Solutions
Living by Chemistry
Additional Science Textbook Solutions
General Chemistry: Atoms First
Organic Chemistry (9th Edition)
Chemistry: The Central Science (14th Edition)
Chemistry For Changing Times (14th Edition)
Chemistry & Chemical Reactivity
Chemistry: Structure and Properties (2nd Edition)
- 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