
Interpretation:
The mass percent of KCl solution has to be calculated.
Concept Introduction:
Composition of a solution can be defined by expressing its concentration. The concentrations of solutions can be expressed in different ways, which are involved in the quantity of solute and the quantity of solution or solvent. Various methods are used to describe the concentration of the solution quantitatively. Some commonly used quantitative concentration terms are percent by mass, percent by volume, molarity, molality and mole fraction.
Mass percentage or percent by mass (w/W %): The mass percentage of a component of a solution is defined as:

Answer to Problem 14A
The mass percent of KCl solution is 3.39%.
Data given: Mass of KCl = 5.34 gm
Mas of the solvent water = 152 gm
Total mass of KCl solution = (152 + 5.34) gm = 157.34 gm
Explanation of Solution
Data given: Mass of KCl = 5.34 gm
Mas of the solvent water = 152 gm
Total mass of KCl solution = (152 + 5.34) gm = 157.34 gm
Chapter 15 Solutions
World of Chemistry, 3rd edition
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