Chemistry, 13.06.2020 15:57, perezesmeralda78

The neutralization of a 0.455 g sample of recrystallized aspirin required 38.6 mL of 0.100 M NaOH solution. An additional 25.0 mL of 0.100 M NaOH was added to the sample to hydrolyze the neutralized aspirin in the solution. The solution was heated. Phenolphthalein was added to the cooled solution and was back-titrated with 11.2 mL of 0.100 M HCl. Determine the mass percent of the sample

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The neutralization of a 0.455 g sample of recrystallized aspirin required 38.6 mL of 0.100 M NaOH so...