Volatile Liquid Unknowns Liquid Molecular Formula Molar mass Boiling point ('C at 1 atm) (g/mol) Pentane CSH12 72.2 36.2 Acetone C3H&O 58.1 56.5 Methanol CH.O 32.0 64.7 Нехаne CSH14 86.2 69.0 Ethanol C2H6O 46.1 78.5 Questions 1. Calculate the % Error in the molar mass you determined. %Error ICal. Molar mass-Theor. Molar mass! • 100 Theor. Molar mass
Volatile Liquid Unknowns Liquid Molecular Formula Molar mass Boiling point ('C at 1 atm) (g/mol) Pentane CSH12 72.2 36.2 Acetone C3H&O 58.1 56.5 Methanol CH.O 32.0 64.7 Нехаne CSH14 86.2 69.0 Ethanol C2H6O 46.1 78.5 Questions 1. Calculate the % Error in the molar mass you determined. %Error ICal. Molar mass-Theor. Molar mass! • 100 Theor. Molar mass
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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Question
![Volatile Liquid Unknowns
Liquid
Molecular
Formula
Molar mass
Boiling point
('C at 1 atm)
(g/mol)
Pentane
CSH12
72.2
36.2
Acetone
C3H6O
58.1
56.5
Methanol
CH40
32.0
64.7
Hexane
C6H14
86.2
69.0
Ethanol
CH6O
46.1
78.5
Questions
1. Calculate the % Error in the molar mass you determined.
%Error
Ical. Molar mass-Theor. Molar mass!
• 100
Theor. Molar mass
2. If the outside of the flask is not dried after vaporizing the liquid, will the
unknown's calculated molar mass be too high or too low? Explain.
m RT
PV](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F33a29280-430d-4584-9032-ac41efaf2589%2F7e9b1caa-ba3d-4749-817c-8c86b4b93464%2F6nu3cyd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Volatile Liquid Unknowns
Liquid
Molecular
Formula
Molar mass
Boiling point
('C at 1 atm)
(g/mol)
Pentane
CSH12
72.2
36.2
Acetone
C3H6O
58.1
56.5
Methanol
CH40
32.0
64.7
Hexane
C6H14
86.2
69.0
Ethanol
CH6O
46.1
78.5
Questions
1. Calculate the % Error in the molar mass you determined.
%Error
Ical. Molar mass-Theor. Molar mass!
• 100
Theor. Molar mass
2. If the outside of the flask is not dried after vaporizing the liquid, will the
unknown's calculated molar mass be too high or too low? Explain.
m RT
PV
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