Question

the diagram below is a model of two solutions. each yellow ball represents one particle of solute. solvent volume: 45 ml solvent volume: 50 ml solution a solution b which solution has a higher concentration of yellow particles? solution a solution b neither; their concentrations are the same

Explanation:

Step1: Count the number of solute particles

Solution A has 12 yellow balls (solute particles), Solution B has 11 yellow balls (solute particles).

Step2: Calculate the concentration formula

Concentration \(C=\frac{\text{Amount of solute}}{\text{Volume of solvent}}\). For Solution A, \(C_A = \frac{12}{45}\approx0.267\) (particles per mL). For Solution B, \(C_B=\frac{11}{50} = 0.22\) (particles per mL).

Answer:

Solution A