a) Compare between equivalence point and endpoint. Distinguish which point comes first.b) Sulfanilamide, C6H4N2O2S is a sulfonamide antibacterial drug. The purity of sulfanilamide(168.18 g/mol) can be determined by the following steps. First, oxidize sulfur to SO₂ gas.Next, allow SO₂ gas generated to pass through H₂O₂ to produce H₂SO4. The acid is thentitrated with NaOH standard solution. Given a 0.5136 g of sulfanilamide sample requiredan average titre volume of 48.13 mL 0.1251 M NaOH. Suggest a suitable indicator to beused in this titration and predict the purity of sulfanilamide being analysed. (Note: 1 molsulfanilamide = 1 mol H₂SO4)

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a) Compare between equivalence point and endpoint. Distinguish which point comes first.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

a) Compare between equivalence point and endpoint. Distinguish which point comes first.
b) Sulfanilamide, C6H4N2O2S is a sulfonamide antibacterial drug. The purity of sulfanilamide
(168.18 g/mol) can be determined by the following steps. First, oxidize sulfur to SO₂ gas.
Next, allow SO₂ gas generated to pass through H₂O₂ to produce H₂SO4. The acid is then
titrated with NaOH standard solution. Given a 0.5136 g of sulfanilamide sample required
an average titre volume of 48.13 mL 0.1251 M NaOH. Suggest a suitable indicator to be
used in this titration and predict the purity of sulfanilamide being analysed. (Note: 1 mol
sulfanilamide = 1 mol H₂SO4)

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