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 concentration of blue particles in 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, \(n = 1\), \(V=20\space mL\), so \(C_A=\frac{1}{20}= 0.05\space particles/mL\)

Step2: Calculate concentration of blue particles in Solution B

For Solution B, \(n = 2\), \(V = 40\space mL\), so \(C_B=\frac{2}{40}=0.05\space particles/mL\)

Answer:

neither; their concentrations are the same