(a)
Interpretation:
The compound that exhibits weaker intermolecular forces has to be given.
Concept introduction:
London Dispersion forces:
London dispersion forces are weak interactions due to the temporary changes in electron density in a molecule. All covalent compound exhibits London dispersion forces. These intermolecular forces are the only intermolecular forces present in nonpolar compounds.
Hydrogen Bonding:
A
Dipole-dipole interactions:
Dipole–dipole interactions are electrostatic interactions between molecules which have permanent dipoles. This interaction is stronger than the London forces but is weaker than ion-ion interaction because only partial charges are involved positive end of a polar molecule will attract the negative end of the other molecule and influence its position
(b)
Interpretation:
The compound, which has higher boiling point, has to be given.
(c)
Interpretation:
The compound, which has higher melting point, has to be given.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Principles of General, Organic, Biological Chemistry
- 1. Substance X dissolves in Substance Y. Which of the following statements is true? a.Substances X and Y do not have a significantly large difference of polarities. b.Substance X has many hydroxyl substituents that can hydrogen bond with the n-alkane Substance X. c.Substance Y is non-polar and is able to dissolve the polar Substance X. d.Substance Y is polar and is capable of dipole-dipole interaction with the nonpolar Substance X. 2. Substances A,B,C,D, and E are mixed together. Substances B and E form into a separate immiscible layer above the solution. Which of the following statements is true? a.B and E are non-polar. They can hydrogen bonds with each other in order to separate from the polar A,C, and D b.B and E have similar polarities with A, C, and D. c.B and E are non-polar. A,C and D are polar. d.B and A are polar. It follows the like dissolves like rule.arrow_forwardWhich compound in each pair has the higher boiling point? Which compound in each pair has the higher melting point? a. CH 4 or C 2H 6 b. C 2H 6 or CH 3OH c. HBr or HCl d. C 2H 6 or CH 3Brarrow_forwardWhy do alcohols have boiling points much higher than hydrocarbons of similar molecular weight? a. Alcohols have greater van der Waals attraction forces.b. Alcohol molecules have greater molecular symmetry.c. Hydrogen bonds must be broken in the process of volatilization.d. Alcohols must overcome greater ionic forces in the process of volatilization.arrow_forward
- 4. There are two isomers corresponding to the chemical formula C2H6O. One is an alcohol, and the other is an ether. (hint use the table of electronegativity) a. Draw each compound. b. Which compound would you expect to be more water soluble, and why? c. Which compound would you expect to have the higher boiling point, and why?arrow_forwardWhich of these substances is most soluble in water? a.) C10H21I b.)C6H13Cl c.) C8H17Br d.) C4H9NH2 Give the name of each and explain why it is the most soluble in water. Thanks.arrow_forward20. Which statement is false regarding this compound? A. It should be somewhat soluble in water. B. It is achiral. C. The nitrogen atom should have a trigonal planar geometry. D. It should have a relatively high boiling point. E. All of the statements (A-D) are true. NH₂arrow_forward
- The following compounds have similar molecular weights. Which has the highest boiling point? O a. CH3CH2CH3 b. CH3OCH3 O C. CH3CH₂OH d. CH3CH=Oarrow_forwardWhy does styrene have a higher boiling point, 145 °C, than isopropanol, 83 °C? Based on the types and strength of intermolecular forces?arrow_forwardConsider the reaction of gaseous propene with liquid water to produce liquid 2- propanol. a. Write the balanced chemical equation for this reaction including phase labels. b. What would the Law of Mass Action be? (The specific mathematical equation for K)arrow_forward
- Which has higher boiling point? 1.CH3CH2OH or CH3CH2NH2 Which is more soluble in water? 1.CH3CH2OH or CH3CH2NH2arrow_forward3. Which of the following molecules would hydrogen bond with other molecules like it? For those that do hydrogen bond, draw a diagram of two molecules using a dotted line to indicate where the hydrogen bond will occur. a. Br2 b. CH3 – O – CH3 c. CH3 – O – H d. H2O e. H2Sarrow_forwardWhich element is present in all organic compounds?A. Helium C. CarbonB. Nitrogen D. Oxygen 2. What products are obtained with CH 4 (g) burns completely in an excess ofoxygen? A. CO 2 C. Hydrogen gasB. CO 2 and H 2 O D. Explosion 3. A hydrocarbon molecule is saturated if the molecule contains ___________A. Single covalent bonds, only C. A double covalent bond, onlyB. A triple covalent bond D. Single and double covalent bonds4. A functional group with a carbonyl group functionality is _________________. A. Alcohol C. EsterB. Amine D. Ketone5. Choose the incorrect option regarding Isomerism: A. They differ in both physical and chemical propertiesB. They have the different molecular formulaC. Chain isomers differ in the arrangement of their skeletonD. They have the same molecular formula 6. Which among the following is formed when an alcohol is dehydrated? A. Aldehyde C. AlkeneB. Ketone D. Amine 7. The reaction of water with alkene to produce an alcohol is a/an ______reaction. A. Addition…arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning