Question

the diagram below is a model of two solutions. each blue ball represents one particle of solute. solvent volume: 40 ml solution a solvent volume: 45 ml solution b which solution has a higher concentration of blue particles? solution a solution b neither; their concentrations are the same

Explanation:

Step1: Count the number of solute particles

Solution A has 8 blue balls (solute particles), Solution B has 8 blue balls (solute particles).

Step2: Calculate the concentration formula

Concentration \(C=\frac{n}{V}\) (where \(n\) is the amount of solute, \(V\) is the volume of solvent). For Solution A, \(C_A=\frac{8}{40}= 0.2\) particles/mL. For Solution B, \(C_B=\frac{8}{45}\approx0.178\) particles/mL.

Answer:

Solution A