Each of the following containers illustrates a solution in which the black spheres represent solute. Which is the most concentrated solution?

Question

Each of the following containers illustrates a solution in which the black spheres represent solute.  Which is the most concentrated solution?

Quizplus · Accepted Answer

The concentration of a solution refers to the amount of solute present relative to the amount of solvent. In this case, all the containers have the same amount of solvent. Therefore, the most concentrated solution is the one with the most solute. 
Container D has the largest amount of solute, so it is the most concentrated solution. Containers A, B, and C have progressively less solute, so they are less concentrated. Therefore, the correct answer is D.

Each of the Following Containers Illustrates a Solution in Which