Question

the diagram below is a model of two solutions. each green ball represents one particle of solute. solvent volume: 30 ml solvent volume: 30 ml solution a solution b which solution has a higher concentration of green particles? solution a solution b neither; their concentrations are the same

Explanation:

Step1: Recall the formula for concentration

Concentration \(C=\frac{n}{V}\), where \(n\) is the amount of solute (number of green balls here) and \(V\) is the volume of the solvent (same \(V = 30\space mL\) for both solutions).

Step2: Count the number of solute particles

For Solution A, \(n_A=2\). For Solution B, \(n_B = 2\).

Step3: Calculate the concentration

Since \(C_A=\frac{n_A}{V}=\frac{2}{30}\) and \(C_B=\frac{n_B}{V}=\frac{2}{30}\)

Answer:

neither; their concentrations are the same