50.0 mL of 0.20M Ba(OH)2 is added to 75.0mL of 0.250M HNO3. Determine the following information: Excess reactant Moles of excess reactant pH of final solution

50.0 mL of 0.20M Ba(OH)2 is added to 75.0mL of 0.250M HNO3. Determine the following information:
Excess reactant Moles of excess reactant pH of final solution