A solution of 114 mL of 0.190 molecules KOH is mixed with a solution of 200 mL of 0.220 molecules NiSO4.

a. write a balanced equation for the reaction that occurs. identify all phases in answer

I think you have made an error in your post; I think the M stands for 0.190 Molar and 0.220 Molar.

KOH(aq) + HCl(aq) ==> KCl(aq) + H2O(l)