The purity of a pharmaceutical preparation of sulfanilamide, C6H4N2O2S, is determined by oxidizing the sulfur to SO2 and bubbling it through H₂O2 to produce H₂SO4. The acid is titrated to the bromothymol blue end point using a standard solution of NaOH. Calculate the purity of the preparation given that a 0.5136-g sample requires 48.13 mL of 0.1251 M NaOH.
The purity of a pharmaceutical preparation of sulfanilamide, C6H4N2O2S, is determined by oxidizing the sulfur to SO2 and bubbling it through H₂O2 to produce H₂SO4. The acid is titrated to the bromothymol blue end point using a standard solution of NaOH. Calculate the purity of the preparation given that a 0.5136-g sample requires 48.13 mL of 0.1251 M NaOH.
Chapter3: Mechanisms
Section: Chapter Questions
Problem 133EQ
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CORRECT ANSWER: 98.56
Transcribed Image Text:The purity of a pharmaceutical preparation of sulfanilamide, C6H4N2O2S, is determined by oxidizing the sulfur to SO2 and bubbling it
through H₂O2 to produce H₂SO4. The acid is titrated to the bromothymol blue end point using a standard solution of NaOH. Calculate
the purity of the preparation given that a 0.5136-g sample requires 48.13 mL of 0.1251 M NaOH.
Transcribed Image Text:Correct Answer:
98.56
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