Question

The dissolution reaction is kmno4(s) → k (aq) mno4-(aq). If a solution is made that is 0.15 M in kmno4, what are the concentrations of the two ions?

Answer 1

The concentration of both potassium ions (K+) and permanganate ions (MnO4-) in a 0.15 M KMnO4 solution will be 0.15 M each.

Step-by-step explanation:

When potassium permanganate (KMnO4) dissolves in water, it dissociates into potassium ions (K+) and permanganate ions (MnO4−). For a solution that is 0.15 M in KMnO4, since each KMnO4 molecule provides one K+ and one MnO4− upon dissolution, the concentration of each ion will also be 0.15 M in the solution.