A redox titration of 150.0 mL of 0.110 M CrSO4 with 0.110 M KMnO₄ was performed at 25 °C with its pH being maintained at 2.50 using a suitable buffer. One half of an electrochemical cell is made up of the solution in contact with a platinum electrode. The other half-cell is a standard hydrogen electrode. The two half-cells are joined by a wire and a salt bridge, and the cell potential is measured with a voltmeter to track the titration's progress. If the expected products are Cr³⁺ and Mn²⁺, what is the net ionic equation for the titration reaction?