19. Sodium thiosulfate (Na,S2O3, molar mass = 158.2 g/mol) is used in the development of photographic film. Your summer job is at a photography lab and you need to check the purity of an outdated supply. You react 40.21 mL of 0.246 M iodine solution with a 3.232 g sample. What is the percent purity of the sodium thiosulfate that you report to your boss? L(aq) + 2S20,2-(aq) → 21-(aq) + S,O²-(aq) a. 100% d. 98.6% b. 48.4% е. 84.4% с. 96.8%

19. Sodium thiosulfate (Na,S2O3, molar mass = 158.2 g/mol) is used in the development of photographic film. Your summer job is at a photography lab and you need to check the purity of an outdated supply. You react 40.21 mL of 0.246 M iodine solution with a 3.232 g sample. What is the percent purity of the sodium thiosulfate that you report to your boss? L(aq) + 2S20,2-(aq) → 21-(aq) + S,O²-(aq) a. 100% d. 98.6% b. 48.4% е. 84.4% с. 96.8%

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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