10. Butanal (MW= 72) has a boiling point of 76 °C while butanol (MW= 74) has a boiling point of 118 °C. What accounts for this difference in boiling points? A) Butanol is polar while butanal is not polar. B) Butanol can exhibit dipole-dipole interactions while butanal cannot. C) Butanol can hydrogen bond and butanal cannot hydrogen bond. D) Butanal is less sterically hindered than butanol.

10. Butanal (MW= 72) has a boiling point of 76 °C while butanol (MW= 74) has a boiling point of 118 °C. What accounts for this difference in boiling points? A) Butanol is polar while butanal is not polar. B) Butanol can exhibit dipole-dipole interactions while butanal cannot. C) Butanol can hydrogen bond and butanal cannot hydrogen bond. D) Butanal is less sterically hindered than butanol.

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter13: Alcohols, Phenols, And Ethers

Section: Chapter Questions

Problem 13.33E: Methanol is fairly volatile and evaporates quickly if spilled. Methanol is also absorbed quite...

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Compare the following two alcohols. Which one is more soluble in water? Why? НО OH Compound 1 OH Compound 2 OH A) Compound 1 is more soluble because it has greater ability to hydrogen bond with water. B) Compound 2 is more soluble because it has greater ability to hydrogen bond with water. C) Neither of these compounds are water soluble. D) Compound 1 is more soluble because it will have more dipole-dipole interactions with water. E) Compound 2 is more soluble because it will have more dipole-dipole interactions with water.
Compare the following two compounds. Which is more soluble in water? Why? A) Compound 1 is more soluble because it has more ability to hydrogen bond with water. B) Compound 2 is more soluble because it has more ability to hydrogen bond with water C) Neither of these compounds is water soluble. D) Compound 1 is more soluble because it will have more dipole-dipole interactions with water. E) Compound 2 is more soluble because it will have more dipole-dipole interactions with water.
Write the skeletal structures of propanal, acetone and cyclohexanone. What is the major intermolecular force (IMF) found in them? Based on their major intermolecular force and molecular weight, what can you predict on their solubility in water? Chemical Name Skeletal Structures Major IMF Solubility in water Propanal Acetone Cyclohexanone
Which of the two has a higher boiling point: Propanol or Pentanol?
Using the relationship between the structure and the boiling point. Obtain a table for the listed chemicals below showing how the boiling point will be different with (1) the different chemical structures, (2) with different functional groups. Boiling Point and Functionalized Compounds: Chemical: Cyclohexanol Cyclohexanone Cyclohexene Benzaldehyde Benzyl alcohol
Which among the choices below is true for cyclohexanol? A) It is more soluble in polar solvent B) It is more soluble in nonpolar solvent C) It has lower BP than hexane. D) The O atom has different molecular geometry compared to water.
Which of the following best describes the solubility of aldehydes and ketones? A) They are all soluble in water and organic solvents. B) They are water soluble but not soluble in organic solvents. C) They are soluble in all organic solvents but only soluble in water for low molecular mass species. D) They are all soluble in water but only soluble in organic solvents for low molecular mass species.
3. What type of intermolecular interaction in alcohol is responsible for its ability to dissolve polar solvents?Choices: Van der Waals interaction, Hydrogen bonding, Induced dipole interaction, Covalent bonding
5) Which of the following compounds CANNOT form hydrogen bonds with water? A) (CH3CH2)2NH B) CH3CH2OH C) (CH3CH2)3N D) CH3CH2NH2E) All of the compounds above are capable of forming hydrogen bonds with water. 6) Name the following compound.CH3 – NH|CH3A) ethyl amine B) dimethyl ether C) methanal D) 1-methanoate E) dimethyl amine
Choose the best explanation for why these compounds are all less than fifteen carbons. A) Aldehydes with longer alkyl chains become increasingly nonpolar and the LDF are stronger than hydrogen bonding with ethanol. B) Ethanol molecules will hydrogen bond with the oxygen of the aldehydes. However, longer alkyl chains interrupt the ability of the aldehyde to hydrogen bond with ethanol which decreases the solubility. C) Ethanol molecules will form strong LDF interactions between the alkyl chains of the aldehydes and the alkyl groups of ethanol. The strong attractions cause the aldehydes to precipitate out of solution. D) When aldehydes chain length increases, the aldehydes have stronger intermolecular force with the small ethanol solvent molecules than the ethanol-ethanol intermolecular force.
Methanol is fairly volatile and evaporates quickly if spilled. Methanol is also absorbed quite readily through the skin. If, in the laboratory, methanol accidentally spilled on your clothing, why would it be a serious mistake to just let it evaporate?
1. Write the skeletal structures of propanal, acetone and cyclohexanone. What is the major intermolecular force (IMF) found in them? Based on their major intermolecular force and molecular weight, what can you predict on their solubility in water? Chemical Name Skeletal Structures Major IMF Solubility in water Propanal Acetone Cyclohexanone 2. What is the purpose of Tollens’ test (Part B)? What is the evidence of a positive result? 3. What is the purpose of oxidation test (Part C)? What is the evidence of a positive result?