A 250 cm3 volumetric flask contains exactly 200,0 cm3 of a 0,025 mol.dm3 sulphuric acid solution. Thereafter ten (10) sodium hydroxide pellets, each of mass 0,1 g are dropped into the flask. After the pellets have dissolved completely, the flask is topped to the 250 cm3 mark with water and the contents are thoroughly homogenised. Determine the pH of the resulting solution.

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