Question

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

Explanation:

Step1: Calculate the concentration of Solution A

Concentration is calculated as the number of solute particles per unit volume of solvent. For Solution A, assume there are 4 green balls (solute particles) and solvent volume \( V_A = 30\space mL \). The concentration \( C_A=\frac{4}{30}=\frac{2}{15}\approx0.133\) particles per mL.

Step2: Calculate the concentration of Solution B

For Solution B, assume there are 12 green balls (solute particles) and solvent volume \( V_B = 50\space mL \). The concentration \( C_B=\frac{12}{50}=\frac{6}{25} = 0.24\) particles per mL.

Step3: Compare the concentrations

Since \(0.133<0.24\), Solution B has a higher concentration.

Answer:

Solution B