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21. A 400.0 mL solution contains 15.0 g of ethanol (C₂H6O). What is the concentration (in M) of ethanol?

21. A 400.0 mL solution contains 15.0 g of ethanol (C₂H6O). What is the concentration (in M) of ethanol?

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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21. A 400.0 mL solution contains 15.0 g of ethanol (C₂H,O). What is the concentration (in M) of ethanol? A: 0.814
Transcribed Image Text:21. A 400.0 mL solution contains 15.0 g of ethanol (C₂H,O). What is the concentration (in M) of ethanol? A: 0.814
Expert Solution
Step 1

In this we have to find the concentration of the ethanol 

Given data,

Mass of ethanol = 15 g 

Molar mass of ethanol = 46.068 g/mol

Volume of the solution = 400 ml  = 400 × 10-3 L   

Concentration = numbers of moles of solute/ volume of solution

 

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