Question

NiCl3 is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.550 M NiCl3 solution.

Answer 1

Answer:

Step 1: Explanation

Strong electrolytes (mostly ionic compounds) dissolve almost completely into ions in water. The concentration of each ion depends on the stoichiometry of the dissolution equation.

Step 2: Calculation

The dissolution equation for NiCl₃ in aqueous solution is:

NiCl₃ -----> Ni⁺ + 3 Cl^-

Thus, every mole of NiCl₃ dissolves into 1 moles of Ni⁺ and 3 mole of Cl^-

If the original concentration of  NiCl₃ is 0.550 M, then

[ Ni⁺] = 1×0.550 M = 0.550 M

[ Cl^- ] = 3×0.550 M = 1.65 M