Question

the diagram below is a model of two solutions. each pink ball represents one particle of solute.solvent volume: 25 mlsolution asolvent volume: 45 mlsolution bwhich solution has a higher concentration of pink particles?solution asolution bneither; their concentrations are the same

Explanation:

Step1: Count solute particles (A)

Solution A has 5 solute particles.

Step2: Calculate concentration (A)

Concentration of A: $\frac{5}{25\ \text{mL}} = 0.2\ \text{particles/mL}$

Step3: Count solute particles (B)

Solution B has 12 solute particles.

Step4: Calculate concentration (B)

Concentration of B: $\frac{12}{45\ \text{mL}} \approx 0.267\ \text{particles/mL}$

Step5: Compare concentrations

$0.267 > 0.2$, so B is higher.

Answer:

Solution B