Question

the diagram below is a model of two solutions. each ball represents one particle of solute. which solution has a higher concentration of blue particles? solution a solution b neither; their concentrations are the same

Explanation:

Step1: Calculate the concentration of blue particles in Solution A

Concentration is calculated as the number of solute particles divided by the volume of the solvent.
In Solution A, there are 7 blue particles and the solvent volume is 40 mL. So the concentration \( C_A=\frac{7}{40}= 0.175\) particles/mL.

Step2: Calculate the concentration of blue particles in Solution B

In Solution B, there is 1 blue particle and the solvent volume is 35 mL. So the concentration \( C_B=\frac{1}{35}\approx0.029\) particles/mL.

Answer:

Solution A