An unknown 8.00 ml sample containing a certain concentration of tin Sn*2 (118.7 g/mol), was treated with 25.0 ml of 0.16M of iodine. After 15 minutes the excess iodine was titrated (using starch as an indicator) with 0.102M of NazS203 (158.1g/mol) to consume a volume of 35.00 ml. The concentration of Sn+2 in the sample is g/L. Sn2+ + 2- Sn4+ + 21 2Na2S203 + 12 Na2S406 + 21"

An unknown 8.00 ml sample containing a certain concentration of tin Sn*2 (118.7 g/mol), was treated with 25.0 ml of 0.16M of iodine. After 15 minutes the excess iodine was titrated (using starch as an indicator) with 0.102M of NazS203 (158.1g/mol) to consume a volume of 35.00 ml. The concentration of Sn+2 in the sample is g/L. Sn2+ + 2- Sn4+ + 21 2Na2S203 + 12 Na2S406 + 21"

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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