CHEMISTRY · Subjective · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
Box G initially shows 10 Mg²⁺ ions, 20 Cl⁻ ions, and 5 ethanol (C₂H₅OH) molecules uniformly distributed in a fixed volume of water. The water then evaporates until the volume of the solution is reduced to one-half, and no solute particles are lost. Describe how the particle spacing for (a) Mg²⁺ and Cl⁻ ions and (b) ethanol molecules will change in the new box relative to the initial diagram. State whether each species becomes “closer together,” “farther apart,” or “unchanged,” and briefly explain why.