Ethanol vapours were allowed to completely fill a large jug with a volume of 15.5L.  The ethanol was burned yielding 5.5mL of pure liquid water in the bottom of the jug at the end of the reaction.   C2H5OH   +   3 O2  ?     2 CO2   +    3 H20 If the room temperature was 21.5 oC and the pressure was 0.996atm, calculate the percentage yield of the water gathered in the jug.

Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter16: Spontaneity Of Reaction
Section: Chapter Questions
Problem 85QAP: Which of the following quantities can be taken to be independent of temperature? independent of...
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a. Ethanol vapours were allowed to completely fill a large jug with a volume of 15.5L.  The ethanol was burned yielding 5.5mL of pure liquid water in the bottom of the jug at the end of the reaction.  

C2H5OH   +   3 O2  ?     2 CO2   +    3 H20

If the room temperature was 21.5 oC and the pressure was 0.996atm, calculate the percentage yield of the water gathered in the jug. 

 

b. A 10.0 mL sample of sulfuric acid with an unknown concentration was titrated with 3.5 x 10-4 mol/L NaOH.  If 20.4mL of the sodium hydroxide was required to completely neutralize the acid, determine the concentration of the sulfuric acid in the sample.  Then, determine the original pH of the sulfuric acid sample



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