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11) The density of an 15.0 % ethanol (C2HSOH) solution is 0.984 g/mL. a) Calculate the molarity of this solution b) What volume of the solution would contain 0.250 moles of ethanol? Type of problem? How do you know What are you looking for?

11) The density of an 15.0 % ethanol (C2HSOH) solution is 0.984 g/mL. a) Calculate the molarity of this solution b) What volume of the solution would contain 0.250 moles of ethanol? Type of problem? How do you know What are you looking for?

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
Section: Chapter Questions
Problem 46QRT
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11) The density of an 15.0 % ethanol (C2H5OH) solution is 0.984 g/mL. a) Calculate the molarity of this solution b) What volume of the solution would contain 0.250 moles of ethanol? Type of problem? How do you know What are you looking for? 12) A 2.6 L sample of water contains 192 ug of lead. a) Determine the molarity of this solution. b) The safety limit for lead is 0.050 ppm of lead per liter of drinking water. Does this concentration exceed the safety limit? Type of problem? How do you know What are you looking for?
Transcribed Image Text:11) The density of an 15.0 % ethanol (C2H5OH) solution is 0.984 g/mL. a) Calculate the molarity of this solution b) What volume of the solution would contain 0.250 moles of ethanol? Type of problem? How do you know What are you looking for? 12) A 2.6 L sample of water contains 192 ug of lead. a) Determine the molarity of this solution. b) The safety limit for lead is 0.050 ppm of lead per liter of drinking water. Does this concentration exceed the safety limit? Type of problem? How do you know What are you looking for?
Expert Solution
11. Sol :- Step 1

Given, 

Density of ethanol = 0.984 g/mL 

Mass percentage of ethanol = 15.0% 

a). Calculate the molarity of the solution = ? 

b). What volume of the solution would contains 0.250 moles of ethanol = ? 

 

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