3.10 Solubility

Multiple Choice

The substance being dissolved in a solution is the?

• solution

• solute

• solvent

• mixture

Multiple Choice

The substance in which a solute is dissolved is a?

• solution

• solvent

• alloy

• mixture

Multiple Choice

The survival of aquatic organisms depends on the small amount of O₂ that dissolves in H₂O. The diagrams above represent possible models to explain this phenomenon. Which diagram provides the better particle representation for the solubility of O₂ in H₂O and why?

• Diagram 1, because O₂ molecules can form hydrogen bonds with the H₂O molecules

• Diagram 1, because O₂ and H₂O are polar molecules that can interact through dipole-dipole forces

• Diagram 2, because the polar H₂O molecules can induce temporary dipoles on the electron clouds of O₂ molecules

• Diagram 2 because the nonpolar O₂ molecules can induce temporary dipoles on the electron clouds of H₂O molecules

Multiple Choice

Based on their Lewis diagrams, which of the following pairs of liquids are most soluble in each other?

Multiple Choice

A student places a piece of I₂ (s) in 50.0 mL of H₂O (l), another piece of I₂ (s) of the same mass in 50.0 mL of C₆H₁₄ (l), and shakes the mixtures. The results are shown. What do the results indicate about the intermolecular interactions of the substances?

• I₂ and H₂O have similar intermolecular interactions, and I₂ and C₆H₁₄ do not

• I₂ and C₆H₁₄ have similar intermolecular interactions, and I₂ and H₂O do not

• I₂, H₂O, and C₆H₁₄ all have similar intermolecular interactions

• I₂, H₂O, and C₆H₁₄ all have completely different types of intermolecular interations