How can we complete questions 2-4 with the molecule? General Chemistry 13. Use the table to predict how the molecular surface area affects boiling point. Think about asphere - it has the lowest surface area for the given volume. The closer the molecular shapeto a sphere the lower the surface area. Pick two more molecules from the table with thesimilar MM's and similar IMFs but with different surface areas - to illustrate how the surfacearea affects bp.A molecule with a smaller surface area has.boiling pointa) Draw structures for the two more molecules, name all molecules, and list the types ofintermolecular forces that are present in each case.bp (1)Sketches:Names:_IMFS:b) Justify this trend from the point of view of IMFs only.A.bp (2)OH4. Now that you've looked at all three trends you are ready to compare boiling points!(a) List the following compounds in order of decreasing boiling points.B.OHC.D.(b) Justify your answer using the trends we just discussed.bp (3)OHE.bp () > bp (_) > bp (_____) > bp () > bp (______) of gravity on boiling point.molecular formulas if possible or, at least, similar molar masses to exclude thestrate how IMFS affect boiling point you should choose molecules thatproperties of the compounds in the set that you choose. For1. Pick two more molecules from the table that help you illustrate the following trend:certain trend you need to make sure that there isThe stronger the IMFs the higher the boiling point(a) Draw structures for the two molecules, name all molecules and list the types of IMFs thatare present in each compound in the liquid stat.bp (1)bp (2)OSketches:ButaneNames:IMFS: DISQUSIONSketches:Names:IMFS:<ButanameDipole-Dipole(b) Do you expect vapor pressure for these compounds (at the some common temperature atwhich all of them are in liquid state) to follow the same trend? Why or why not?2. Pick 2 more molecules to show how the length of extended carbon-carbon chain affects bp:Longer extended carbon-carbon chain hasboiling pointa) Draw structures for the two molecules, write the names for all molecules and indicatethe IMFs present in each case.bp (1)bp (2)bp (3)Butana!Hydragen borb) Justify this trend from the point of view of IMFs only.bp (3)

2. We have to tell whether the boiling point increase or decrease with the increase in the…

2. Pick 2 more molecules to show how the length of extended carbon-carbon chain affects bp: Longer extended carbon-carbon chain has boiling point a) Draw structures for the two molecules, write the names for all molecules and indicate the IMFs present in each case. bp (1) Sketches: Names: IMFs: bp (2) b) Justify this trend from the point of view of IMFs only. bp (3)

2. Pick 2 more molecules to show how the length of extended carbon-carbon chain affects bp: Longer extended carbon-carbon chain has boiling point a) Draw structures for the two molecules, write the names for all molecules and indicate the IMFs present in each case. bp (1) Sketches: Names: IMFs: bp (2) b) Justify this trend from the point of view of IMFs only. bp (3)

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter10: Liquids And Solids

Section: Chapter Questions

Problem 18E: Under certain conditions, molecules of acetic acid, CH3COOH, form dimers, pairs of acetic acid...

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Under certain conditions, molecules of acetic acid, CH3COOH, form dimers, pairs of acetic acid molecules held together by strong intermolecular attractions: Draw a dimer of acetic acid, showing how two CH3COOH molecules are held together, and stating the type of ¡MF that is responsible.
Although they have similar molecular masses (73 and 72 amu, respectively), the boiling point of butylamineis much higher (78C) than that of pentane (36C).Explain why.
a). ) Write the chemical formula for each compound. b) Order the compounds from lowest to highest boiling point and explain your reasoning in great detail. Use the concept of London dispersion forces to rationalize your answer clearly explaining what such forces are. c) Of the atoms contained in the molecules above, order them in sequence from least to most polarizable and clearly explain your reasoning. d) Which molecule do you think is the most viscous and why? e) In the presence of acetic acid, which molecules above have the potential to engage in hydrogen bonding and why?
Arrange the following in increasing order of boiling point:(i) CH3CH2CH2CH2Br(ii) (CH3)3.Br(iii) (CH3)2C.Br
1.Dihedral angle (in chemical terms, nothing to do with planes) in relation to a rotatable bond for themolecule of interest. Present an example to illustrate the concept 2.What are the van der Waals interaction forces in a conformation? Then provide an illustration:
In this chapter, we did not discuss the interaction that is primarily responsible for the attraction that exists between ananion like CH3O- and a nonpolar molecule like Br2.(a) What name would be ascribed to the strongest interaction that exists between those two species?(b) For which pair of species would you expect that type of attractive interaction to be stronger: between CH3O- and Br2or between CH3O- and I2? Why?
Rank molecules A-D (1=lowest, 4=highest) in order of increasing boiling point. Briefly rationalize your ranking. Please answer all parts.
Explain briefly and clearly the following concepts, taking as reference the molecule of n-butane and the corresponding drawings or illustrations. See pages 149-152 of the book Organic Chemistry, sixth edition (J. G. Smith). 1. Potential energy of a conformation. 2. Dihedral angle (in chemical terms, nothing to do with planes) in relation to a rotatable bond for the molecule of interest. Present an example to illustrate the concept 3. What are the van der Waals interaction forces in a conformation? Then provide an illustration: 4. What is steric hindrance in a conformation? Then draw a picture to illustrate the concept? 5. What is the torsional stress of a conformation? Then draw a picture to illustrate the concept? 6. Describe 1,3-diaxial interaction and illustrate with a specific example.
Arrange the following in increasing order of boiling point: (i) CH3CH2CH2CH2Br(ii) (CH3)3Br(iii) (CH3)2CBr
Please write the answer clearly with the state of matter following each compound.
I ONLY NEED THE ANSWERS OF QUESTIONS 4, 5 and 6!! Explain briefly and clearly the following concepts, taking as reference the molecule of n-butane and the corresponding drawings or illustrations. 1. Potential energy of a conformation. 2. Dihedral angle (in chemical terms, nothing to do with planes) in relation to a rotatable bond for the molecule of interest. Present an example to illustrate the concept 3. What are the van der Waals interaction forces in a conformation? Then provide an illustration: 4. What is steric hindrance in a conformation? Then draw a picture to illustrate the concept? 5. What is the torsional stress of a conformation? Then draw a picture to illustrate the concept? 6. Describe 1,3-diaxial interaction and illustrate with a specific example.
(a) In one of the two boxes below, draw a wedge and dashed wedge structure (picture) of CH3Cl that best illustrates the geometry about the central atom. In the other box, draw another picture of the model from a different angle (viewpoint). (b) In CH3Cl, are the three hydrogen atoms equivalent (i.e., do they have identical environments with respect to the other atoms adjacent to themselves)? Briefly explain the evidence for your answer