Question

the diagram below is a model of two solutions. each purple ball represents one particle of solute. solvent volume: 25 ml solvent volume: 50 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 formula

Concentration \(C=\frac{n}{V}\) (where \(n\) is the number of solute particles, \(V\) is the volume of solvent).
For Solution A: \(n = 3\), \(V=25\space mL\), so \(C_A=\frac{3}{25}= 0.12\space particles/mL\).

Step2: Calculate Solution B concentration

For Solution B: \(n = 12\), \(V = 50\space mL\), so \(C_B=\frac{12}{50}=0.24\space particles/mL\).

Answer:

Solution B