Question

the diagram below is a model of two solutions. each purple ball represents one particle of solute. solvent volume: 40 ml solvent volume: 35 ml solution a solution b which solution has a higher concentration of purple particles? solution a solution b neither; their concentrations are the same

Explanation:

Step1: Calculate concentration of Solution A

Concentration formula: \(C=\frac{n}{V}\) (where \(n\) is the number of solute particles, \(V\) is the volume of solvent). For Solution A, \(n = 8\), \(V=40\space mL\). So \(C_A=\frac{8}{40}=\frac{1}{5} = 0.2\space particles/mL\)

Step2: Calculate concentration of Solution B

For Solution B, \(n = 8\), \(V = 35\space mL\). So \(C_B=\frac{8}{35}\approx0.229\space particles/mL\)

Answer:

Solution B