General Chemistry
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A 0.451-g sample of an unknown monoprotic acid is titrated with 0.150 M NaOH. The resulting titration curve is shown here. Determine the molar mass and pKa of the acid.
pKa = 6.5; molar mass = 72.3 g/mol
pKa = 7.8; molar mass = 85.9 g/mol
pKa = 4.2; molar mass = 98.1 g/mol
pKa = 10.1; molar mass = 68.8 g/mol