A 5.199 g sample containing the mineral tellurite was dissolved and then treated with 50.00 mL of 0.03144 M K2Cr207. Upon completion of the reaction, titration of the excess Cr20, required 37.28 mL of 0.1083 M Fe solution. Calculate the percentage by mass of TeO2 (FM 159.60) in the sample. The reactions are 3 TeO; + Cr2O,- +8 H3 H;TeO4+2 Cr + H;O Cr:O +6 Fe + 14 H2 Cr +6 Fe" +7 H:0

A 5.199 g sample containing the mineral tellurite was dissolved and then treated with 50.00 mL of 0.03144 M K2Cr207. Upon completion of the reaction, titration of the excess Cr20, required 37.28 mL of 0.1083 M Fe solution. Calculate the percentage by mass of TeO2 (FM 159.60) in the sample. The reactions are 3 TeO; + Cr2O,- +8 H3 H;TeO4+2 Cr + H;O Cr:O +6 Fe + 14 H2 Cr +6 Fe" +7 H:0

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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