C2H6 O2 40.0g He 4. An engine coolant is an aqueous solution of ethylene glycol, HOCH2CH2OH, 40.0 % by mass with a 100.0g Soluton density of 1.05 g/mL. Calculate the mole fraction of ethylene glycol in this solution? Assume 1.00 L of solution. mole fraction mol C2HO2 moles (2H602 + mal HeD %3D
C2H6 O2 40.0g He 4. An engine coolant is an aqueous solution of ethylene glycol, HOCH2CH2OH, 40.0 % by mass with a 100.0g Soluton density of 1.05 g/mL. Calculate the mole fraction of ethylene glycol in this solution? Assume 1.00 L of solution. mole fraction mol C2HO2 moles (2H602 + mal HeD %3D
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![10 HB
CH, O2
100.0g Solution
*. An engine coolant is an aqueous solution of ethylene glycol, HOCH2CH2OH, 40.0 % by mass with a
density of 1.05 g/mL. Calculate the mole fraction of ethylene glycol in this solution? Assume 1.00 L
of solution.
mole fraction =
mol C2HO2
moles CzHc02 + mal Hz0
O mol
L mL.
g Solutian
mol CetHo Oz
O mol Hoo:
5. Are the following mixtures homogeneous solutions or heterogeneous mixtures? Explain.
Homageneons
Methanol (CH3OH) and Water
polar
polar
nonpolar
Pentane (CH3CH2CH2CH2CH;) and
Octane (CH3CH½CH2CH2CH2CH½CH2CH3)
hanpdar
Homo geneous
Heterageneaus
Sodium chloride and Carbon tetrachloride
polar
honpdar
1-Decanol (CH3CH2CH2CH2CH2CH2CH2CH2CH2CH2OH)
Hetrrogeneous
and Water
polar
Page 2 of 4](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5f990723-bf94-477b-8143-1fbad6ed0ed0%2F7a4fb88e-6ab2-42eb-aa88-cdd83259d0a1%2F5d74qj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:10 HB
CH, O2
100.0g Solution
*. An engine coolant is an aqueous solution of ethylene glycol, HOCH2CH2OH, 40.0 % by mass with a
density of 1.05 g/mL. Calculate the mole fraction of ethylene glycol in this solution? Assume 1.00 L
of solution.
mole fraction =
mol C2HO2
moles CzHc02 + mal Hz0
O mol
L mL.
g Solutian
mol CetHo Oz
O mol Hoo:
5. Are the following mixtures homogeneous solutions or heterogeneous mixtures? Explain.
Homageneons
Methanol (CH3OH) and Water
polar
polar
nonpolar
Pentane (CH3CH2CH2CH2CH;) and
Octane (CH3CH½CH2CH2CH2CH½CH2CH3)
hanpdar
Homo geneous
Heterageneaus
Sodium chloride and Carbon tetrachloride
polar
honpdar
1-Decanol (CH3CH2CH2CH2CH2CH2CH2CH2CH2CH2OH)
Hetrrogeneous
and Water
polar
Page 2 of 4
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