Question

the diagram below is a model of two solutions. each yellow ball represents one particle of solute. 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 Solution A

Concentration is calculated as the number of solute particles divided by the volume of solvent. For Solution A, there are 9 solute particles and the solvent volume is 40 mL. So the concentration \( C_A=\frac{9}{40}= 0.225\) particles/mL.

Step2: Calculate the concentration of Solution B

For Solution B, there are 5 solute particles and the solvent volume is 50 mL. So the concentration \( C_B=\frac{5}{50}=0.1\) particles/mL.

Answer:

Solution A