Think about the structures of the molecules. a) CH3COCH2 CH₂ (butanone) b) C(CH3)4 AHvap. In each case you MUST explain your answer using IMFs. predict which liquid would have the higher boiling (2,2-dimethylpropane) c) ICI VS. VS. VS. CH3CHOHCH2CH3 (2-butanol) CH3CH2CH2CH2CH3 (pentane) Brz

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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How can we complete part 2 using vaporization?
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General Chemistry 1
Part II. Enthalpy of vaporization, bp, and vapor pressure from IMFs.
point, vapor pressure, and enthalpy of vaporization (AHvap).
In part II of today's workshop you will practice to identify IMFs and predict their effect on boiling
The AHvap for a given molecule is the energy required to transform a given quantity of a
substance from the liquid phase to the gaseous phase. AHvap values are usually measured in units
of kJ/mol just like the AHRXN that we looked at in Topic 6.
For each of the following pairs, list IMFS and predict which liquid would have the higher boiling
point, vapor pressure, and AHvap. In each case you MUST explain your answer using IMFs.
HINT: Think about the structures of the molecules.
a) CH3COCH2 CH₂
(butanone)
b) C(CH3)4
(2,2-dimethylpropane)
c) ICI
e) CH3CH2CH2NH2
VS.
VS.
VS.
VS.
CH3CHOHCH₂CH3
(2-butanol)
CH3CH2CH2CH2CH3
(pentane)
Br₂
N(CH3)3
S
Transcribed Image Text:Proof General Chemistry 1 Part II. Enthalpy of vaporization, bp, and vapor pressure from IMFs. point, vapor pressure, and enthalpy of vaporization (AHvap). In part II of today's workshop you will practice to identify IMFs and predict their effect on boiling The AHvap for a given molecule is the energy required to transform a given quantity of a substance from the liquid phase to the gaseous phase. AHvap values are usually measured in units of kJ/mol just like the AHRXN that we looked at in Topic 6. For each of the following pairs, list IMFS and predict which liquid would have the higher boiling point, vapor pressure, and AHvap. In each case you MUST explain your answer using IMFs. HINT: Think about the structures of the molecules. a) CH3COCH2 CH₂ (butanone) b) C(CH3)4 (2,2-dimethylpropane) c) ICI e) CH3CH2CH2NH2 VS. VS. VS. VS. CH3CHOHCH₂CH3 (2-butanol) CH3CH2CH2CH2CH3 (pentane) Br₂ N(CH3)3 S
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