Concept explainers
Interpretation:
Mass of heptane and pentane present in 93 gm of the solution have 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 17A
4.84 gm of heptane and 2.7 gm of pentane are present in 93 gm of a solution.
Data given: Total mass of the solution = 93 gm
Percent by mass heptane = 5.2%
Percent by mass pentane = 2.9%
Explanation of Solution
Data given: Total mass of the solution = 93 gm
Percent by mass heptane = 5.2%
Percent by mass pentane = 2.9%
Chapter 15 Solutions
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