Answer : The molar concentration of ion is, 0.5 M
Explanation :
The dissociation reaction of is,
By the stoichiometry we can say that, 1 mole of dissociates into 2 mole of ions and 1 mole of ions.
As we are given the concentration of is, 0.250 M.
So, the molar concentration of ion =
The molar concentration of ion = 0.250 M
Therefore, the molar concentration of ion is, 0.5 M