Which of the following statements about the dissolving process is accurate?
A) For a substance to dissolve, solute-solvent attractions must overcome the attractions within both solute and solvent
B) Surfactant ions have a hydrophilic end that is repelled by water
C) Immiscible liquids mix to form a solution
D) Solutes dissolve in solvents of dissimilar polarities
A
The accurate statement about the dissolving process is:
A) For a substance to dissolve, solute-solvent attractions must overcome the attractions within both solute and solvent.
To determine which statement about the dissolving process is accurate, we can evaluate each option and determine the correct one:
A) For a substance to dissolve, solute-solvent attractions must overcome the attractions within both solute and solvent
This statement is accurate. When a substance dissolves, the solute particles mix with the solvent particles. To do so, the solute-solvent attractions must be strong enough to overcome the attractions within both the solute and solvent.
B) Surfactant ions have a hydrophilic end that is repelled by water
This statement is not accurate. Surfactant ions have a hydrophilic (water-loving) end, which is attracted to water. The hydrophilic end allows surfactant ions to interact with water molecules.
C) Immiscible liquids mix to form a solution
This statement is not accurate. Immiscible liquids do not mix to form a solution. Immiscible liquids do not have strong enough attractive forces between their particles to overcome the repulsive forces and form a homogeneous mixture. Instead, they tend to form separate layers.
D) Solutes dissolve in solvents of dissimilar polarities
This statement is accurate. In general, solutes dissolve more readily in solvents that have similar polarities. However, solutes can also dissolve in solvents of dissimilar polarities to some extent, depending on the nature of the solute and solvent molecules.
Based on the analysis, the accurate statement is:
A) For a substance to dissolve, solute-solvent attractions must overcome the attractions within both solute and solvent