Question

If you dissolve 0.40 moles of aluminum chloride in 0.50 liters of solution, what is the total concentration, in moles/liter, of the chloride ions present in solution?

a) 0.80 M
b) 1.6 M
c) 3.2 M
d) 4.0 M
e) 2.4 M

Answer 1

The total concentration of chloride ions in the solution is 2.4 M.

Step-by-step explanation:

To find the total concentration of chloride ions present in the solution, we need to determine the number of moles of chloride ions. Since aluminum chloride is a 1:3 ratio of aluminum to chloride ions, we can calculate the moles of chloride ions by multiplying the moles of aluminum chloride by 3. In this case, we have 0.40 moles of aluminum chloride, so the moles of chloride ions would be 0.40 x 3 = 1.20 moles.

Next, we need to determine the volume of the solution. We are given that the solution volume is 0.50 liters. Therefore, the total concentration of chloride ions in the solution would be the moles of chloride ions divided by the volume of the solution, which is 1.20 moles / 0.50 liters = 2.4 M.