Question

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

Explanation:

Step1: Calculate the concentration of purple particles in Solution A

Concentration = \(\frac{\text{Number of purple particles}}{\text{Volume of solvent}}\). In Solution A, the number of purple particles is \(6\), and the volume of solvent is \(35\space mL\). So the concentration \(C_A=\frac{6}{35}\approx 0.171\space particles/mL\)

Step2: Calculate the concentration of purple particles in Solution B

In Solution B, the number of purple particles is \(1\), and the volume of solvent is \(50\space mL\). So the concentration \(C_B = \frac{1}{50}=0.02\space particles/mL\)

Answer:

Solution A