the diagram below is a model of two solutions. each pink ball represents one particle of solute. solvent…
the diagram below is a model of two solutions. each pink ball represents one particle of solute. solvent volume: 40 ml solvent volume: 35 ml solution a solution b which solution has a higher concentration of pink particles? solution a solution b neither; their concentrations are the same
Answer
Explanation:
Step1: Calculate concentration formula
Concentration of solute (=\frac{\text{Number of solute particles}}{\text{Volume of solvent}}). Assume number of solute particles in Solution A and Solution B is (n) (count the pink balls, both have 8). For Solution A: (C_A=\frac{n}{V_A}), (V_A = 40\space mL). For Solution B: (C_B=\frac{n}{V_B}), (V_B=35\space mL).
Step2: Compare concentrations
Since (n) is the same (8 particles) and (V_A>V_B) ((40 > 35)), using the formula (C=\frac{n}{V}), when (n) is constant, (C) is inversely proportional to (V). So (C_B>C_A).
Answer:
Solution B