A particulate model of a vitamin-water drink shows the following species in a fixed…
CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
A particulate model of a vitamin-water drink shows the following species in a fixed volume: 400 water molecules, 25 orange spheres (glucose molecules, which remain intact), and 10 pairs of blue and yellow spheres (each pair represents a dissociated Na⁺/Cl⁻ ion pair). Which combination best classifies the components present?
(a) Water is the solvent; glucose and the ions from NaCl are both solutes.
(b) Water and glucose are solvents; Na⁺ and Cl⁻ ions are the only solutes.
(c) Water is the solvent; glucose is the only solute because Na⁺ and Cl⁻ ions are spectators.
(d) Glucose is the solvent because it is molecular; Na⁺ and Cl⁻ ions are solutes; water is an inert medium.