Question

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

Explanation:

Step1: Calculate the concentration of purple particles in Solution A

Concentration = \(\frac{\text{Number of purple particles}}{\text{Volume of solvent}}\). In Solution A, there are 5 purple particles and solvent volume is \(35\space mL\). So concentration \(A=\frac{5}{35}=\frac{1}{7}\approx0.143\) particles per \(mL\).

Step2: Calculate the concentration of purple particles in Solution B

In Solution B, there is 1 purple particle and solvent volume is \(45\space mL\). So concentration \(B = \frac{1}{45}\approx0.022\) particles per \(mL\).

Answer:

Solution A