Which contains the greatest number of chloride ions? A)25 mL of 2.0 M NaCl B)50 mL of 1.0 M CaCl₂ C)10 mL of 2.5 M FeCl₃ D)All contain the same number of chloride ions.

Question

Quizplus · Accepted Answer

We first need to calculate the number of moles of chloride ions in each solution:

A) 2.0 mol/L x 0.025 L = 0.05 mol of Cl-
B) 1.0 mol/L x 0.050 L x 2 = 0.10 mol of Cl-
C) 2.5 mol/L x 0.010 L x 3 = 0.075 mol of Cl-

Therefore, solution B contains the greatest number of chloride ions with 0.10 mol.

Which Contains the Greatest Number of Chloride Ions