5. Ethanol (C2H;OH), the alcohol found in alcoholic beverages, has density 0.789 g/mL at room temperature. a) Determine the molar mass of ethanol (just give answer w/units): b) Calculate the moles of ethanol that are present in a 15.0 mL sample. Show work using dimensional analysis or use density equation (write the equation). Give answer with correct sig.figs. c) Calculate the mass of carbon in the 15.0 mL sample of ethanol. Show work using dimensional analysis and give answer with correct sig.figs.
5. Ethanol (C2H;OH), the alcohol found in alcoholic beverages, has density 0.789 g/mL at room temperature. a) Determine the molar mass of ethanol (just give answer w/units): b) Calculate the moles of ethanol that are present in a 15.0 mL sample. Show work using dimensional analysis or use density equation (write the equation). Give answer with correct sig.figs. c) Calculate the mass of carbon in the 15.0 mL sample of ethanol. Show work using dimensional analysis and give answer with correct sig.figs.
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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Transcribed Image Text:5. Ethanol (C,H;OH), the alcohol found in alcoholic beverages, has density 0.789 g/mL at room temperature.
a) Determine the molar mass of ethanol (just give answer w/units):
b) Calculate the moles of ethanol that are present in a 15.0 mL sample. Show work using dimensional
analysis or use density equation (write the equation). Give answer with correct sig.figs.
c) Calculate the mass of carbon in the 15.0 mL sample of ethanol. Show work using dimensional analysis
and give answer with correct sig.figs.
Expert Solution
Step 1
Molar mass can be easily calculated as shown in step 2 and the unit of molar mass is g/mol
The density equation is Density = mass/volume
The rest of the calculation is done by unitary method.
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