calculate the volume of NaOH

Need help with calculating the pH

A chemistry student weighs out 0.0994g of hypobromous acid (HBrO) into a 250.mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.2000MNaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits. A solution is prepared at 25C that is initially 0.31M in chlorous acid (HClO2), a weak add with K2=1.1102, and 0.17M in potasslum chlorite ( KClO), Calculate the pH of the solution. Round your answer to 2 decimal places. A solution is prepared at 25.5C that is initially 0.15M in dimethylamine ((CH3)2NH), a weak base with K2=5.4104, and 0.47A in dimethylammonium brornide ((CH3)2NH2Br). Calculate the pH of the solution. Round your answer to 2 decimal places. A chemistry student weighs out 0.0994g of hypobromous acid (HBrO) into a 250.mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.2000MNaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits. A solution is prepared at 25C that is initially 0.31M in chlorous acid (HClO2), a weak add with K2=1.1102, and 0.17M in potasslum chlorite ( KClO), Calculate the pH of the solution. Round your answer to 2 decimal places. A solution is prepared at 25.5C that is initially 0.15M in dimethylamine ((CH3)2NH), a weak base with K2=5.4104, and 0.47A in dimethylammonium brornide ((CH3)2NH2Br). Calculate the pH of the solution. Round your answer to 2 decimal places