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A solution of ethanol (C 2 H 5 OH) in water is prepared by dissolving 75.0 mL of ethanol (density = 0.79 g/cm 3 ) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
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Chemistry: An Atoms First Approach
2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
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Chemistry: An Atoms First Approach
2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 6, Problem 30E
Textbook Problem
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A solution of ethanol (C2H5OH) in water is prepared by dissolving 75.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
Interpretation Introduction
Interpretation: The molarity of ethanol in solution has to be calculated by using the given data.
Concept Introduction: Concentration can be defined in terms of molarity as moles of solute per volume of solution in litres.
Explanation of Solution
Explanation
Molarity of ethanol in solution is
Record the data
The total volume of the solution and the volume of ethanol along with density of ethanol are reported as shown above.
- Calculate the mass of ethanol from mass and density
Chapter 6 Solutions
Chemistry: An Atoms First Approach
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