Question

the diagram below is a model of two solutions. each ball represents one particle of solute. solvent volume: 20 ml solvent volume: 50 ml solution a solution b which solution has a higher concentration of yellow particles? solution a solution b neither; their concentrations are the same

Explanation:

Step1: Calculate the concentration of yellow particles in Solution A

Concentration = $\frac{\text{Number of solute particles}}{\text{Volume of solvent}}$.
For Solution A, the number of yellow particles is 1, and the volume of solvent is 20 mL. So the concentration of yellow particles in Solution A is $\frac{1}{20}= 0.05$ particles/mL.

Step2: Calculate the concentration of yellow particles in Solution B

For Solution B, the number of yellow particles is 7, and the volume of solvent is 50 mL. So the concentration of yellow particles in Solution B is $\frac{7}{50}=0.14$ particles/mL.

Answer:

Solution B