Na2S2O3 was standardized using primary standard KIO3. A 0.1000 g sample of KIO3 (FW=214.00 g/mol) was dissolved in dilute HCl. 25.00 mL of water was added with an unmeasured excess of KI. The liberated iodine required 18.50 mL of Na2S2O3. What is the molar concentration of the titrant?

Na2S2O3 was standardized using primary standard KIO3. A 0.1000 g sample of KIO3 (FW=214.00 g/mol) was dissolved in dilute HCl. 25.00 mL of water was added with an unmeasured excess of KI. The liberated iodine required 18.50 mL of Na2S2O3. What is the molar concentration of the titrant?

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.9: Spectrophotometry

Problem 2.1ACP: Excess KI is added to a 100.0-mL sample of a soft drink that had been contaminated with bleach,...

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