Using the calculated experimental average density of the liquid samples as reference, what is the probable identity of the unknown? ethanol hexane acetone cannot be determined
Using the calculated experimental average density of the liquid samples as reference, what is the probable identity of the unknown? ethanol hexane acetone cannot be determined
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
Problem 43GQ: Hexane (C6H14, density = 0.766 g/cm3), perfluoro-hexane (C6F14, density = 1.669 g/cm3), and water...
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Question
![A group of students were trying to experimentally determine the
density of an unknown liquid. They developed a standard technique
for measuring density by recording the mass of a liquid using an
analytical balance. The volume of the liquids were accurately
measured using a serological pipette and was recorded to be 5.00
mL for each trial. The students were able to collect the following data:
LIQUID
Trial 1 (mass in
Trial 2 (mass in
Trial 3 (mass in
Theoretical
SAMPLE
grams)
grams)
grams)
Density
Hexane
3.281
3.284
3.279
0.655 g/ml
Acetone
3.921
3.923
3.947
0.784 g/mL
Ethanol
3.912
3.911
3.913
0.789 g/mL
unknown
3.914
3.911
3.910
Using the calculated experimental average density of the liquid
samples as reference, what is the probable identity of the
unknown?
ethanol
heхane
acetone
cannot be determined](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff460d4f5-4385-41c8-ad82-8cb43a731abc%2F7dc0464b-41ae-4dde-bb65-b1ceb22bad45%2Fzpqzmk_processed.png&w=3840&q=75)
Transcribed Image Text:A group of students were trying to experimentally determine the
density of an unknown liquid. They developed a standard technique
for measuring density by recording the mass of a liquid using an
analytical balance. The volume of the liquids were accurately
measured using a serological pipette and was recorded to be 5.00
mL for each trial. The students were able to collect the following data:
LIQUID
Trial 1 (mass in
Trial 2 (mass in
Trial 3 (mass in
Theoretical
SAMPLE
grams)
grams)
grams)
Density
Hexane
3.281
3.284
3.279
0.655 g/ml
Acetone
3.921
3.923
3.947
0.784 g/mL
Ethanol
3.912
3.911
3.913
0.789 g/mL
unknown
3.914
3.911
3.910
Using the calculated experimental average density of the liquid
samples as reference, what is the probable identity of the
unknown?
ethanol
heхane
acetone
cannot be determined
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