A group of first year engineering students performed a firsthand investigation to find the heat of combustion of ethyl alcohol. They burned ethanol in an alcohol lamp and used it to heat 100 mL of water. They obtained the following results: Initial mass of alcohol lamp with ethanol= 50.9g Final mass of alcohol lamp with ethanol= 49g Initial Temperature of water= 31.4 degrees Celsius Final Temperature of water= 35.3 degrees Celsius Calculate the molar heat of combustion of ethanol(J/mol), rounded to the second decimal place, using the results gathered. (The specific heat of water is 4.184 J/g∘∘C.).
A group of first year engineering students performed a firsthand investigation to find the heat of combustion of ethyl alcohol. They burned ethanol in an alcohol lamp and used it to heat 100 mL of water. They obtained the following results: Initial mass of alcohol lamp with ethanol= 50.9g Final mass of alcohol lamp with ethanol= 49g Initial Temperature of water= 31.4 degrees Celsius Final Temperature of water= 35.3 degrees Celsius Calculate the molar heat of combustion of ethanol(J/mol), rounded to the second decimal place, using the results gathered. (The specific heat of water is 4.184 J/g∘∘C.).
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A group of first year engineering students performed a firsthand investigation to find the heat of combustion of ethyl alcohol. They burned ethanol in an alcohol lamp and used it to heat 100 mL of water. They obtained the following results:
Initial mass of alcohol lamp with ethanol= 50.9g
Final mass of alcohol lamp with ethanol= 49g
Initial Temperature of water= 31.4 degrees Celsius
Final Temperature of water= 35.3 degrees Celsius
Calculate the molar heat of combustion of ethanol(J/mol), rounded to the second decimal place, using the results gathered.
(The specific heat of water is 4.184 J/g∘∘C.).
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