The sulfur content of an iron pyrite ore sample is determined by converting it to H2S gas, absorbing the H2S in 10.0 mL of 0.00600 M 12, and then back-titrating the excess l2 with 0.00200 M NazS203. If 2.8 mL Na2S2O3 is required for the titration, how many milligrams of sulfur are contained in the sample? H2S + 12 S+ 21 + 2H*; I2 + 2S2032- → 21 + S4O62 H 1.008; O 15.999; S 32.06; I 126.90

The sulfur content of an iron pyrite ore sample is determined by converting it to H2S gas, absorbing the H2S in 10.0 mL of 0.00600 M 12, and then back-titrating the excess l2 with 0.00200 M NazS203. If 2.8 mL Na2S2O3 is required for the titration, how many milligrams of sulfur are contained in the sample? H2S + 12 S+ 21 + 2H*; I2 + 2S2032- → 21 + S4O62 H 1.008; O 15.999; S 32.06; I 126.90

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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