
Interpretation:
The mass percent of CaCl2solution 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 15A
The mass percent of CaCl2solution is 19.6%.
Explanation of Solution
Mass of CaCl2 = 67.1 gm
And,
Mass of the solvent water = 275 gm
Now,
Chapter 15 Solutions
World of Chemistry, 3rd edition
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