What is the osmotic pressure in two equal volumes of cola with identical concentrations?

Osmotic pressure is a colligative property, which means it depends on the concentration of solute particles in a solution rather than the identity of those particles. When two equal volumes of cola have identical concentrations, they contain the same number of solute particles per unit volume.

Because osmotic pressure is a function of the concentration of these solute particles, as long as the conditions (volume and concentration) are identical, the osmotic pressure in both bottles will also be equal. This principle applies universally to solutions, providing a consistent measure of how much pressure is exerted by solutes in a solvent. Therefore, the osmotic pressure being the same in both bottles reflects the fundamental properties of osmotic activity in solutions.