IB SL CHEM - IMFs & Solubility

Which of the following factors is NOT a significant contributor to the solubility of a solute in a solvent?

• a. Temperature

• b. Pressure

• c. Molecular size

• d. Intermolecular forces

In general, solutes with stronger intermolecular forces tend to be more soluble in solvents with:

• a. Stronger intermolecular forces

• b. Weaker intermolecular forces

• c. No specific intermolecular forces

• d. Polar covalent bonds

Which intermolecular force is particularly important in explaining the solubility of ionic compounds in water?

• a. London dispersion forces

• b. Dipole-dipole interactions

• c. Hydrogen bonding

• d. Ion-dipole interactions

The solubility of nonpolar molecules in water is primarily influenced by:

• a. Hydrogen bonding

• b. Dipole-dipole interactions

• c. London dispersion forces

• d. Covalent bonding

Which of the following substances would have the highest solubility in a nonpolar solvent?

• a. A nonpolar molecule

• b. A polar molecule

• c. An ionic compound

• d. A substance with strong hydrogen bonding

Which of the following solvents is most likely to dissolve ionic compounds effectively due to ion-dipole interactions?

• a. Acetone (CH₃COCH₃)

• b. Hexane (C₆H₁₄)

• c. Water (H₂O)

• d. Methanol (CH₃OH)

Which of the following compounds is expected to be more soluble in water due to the presence of hydrogen bonding?

• a. Ethanol (C₂H₅OH)

• b. Methane (CH₄)

• c. Acetone (CH₃COCH₃)

• d. Diethyl ether (C₂H₅OC₂H₅)