The following is the brief summary of procedures for Expt. 8: Step 1: The unknown stock solution was prepared by dissolving 0.5185 g of a steel sample, yielding 100.0 mL of the solution . Step 2: Aliquot 1 was prepared by diluting 10.00 mL of the unknown stock solution to 50.00 ml.. . Step 3: Aliquot 2 was made by mixing 10.00 mL of the unknown stock solution and 3.00 ml. of 9.85 x 10 M Mn² solution (standard). and then this mixture was diluted to 50.00 ml. . Step 4: After oxidizing Mn2 to MnO4, absorbance was measured from both Aliquots 1 and 2. If the absorbance values measured from Aliquots 1 and 2 are 0.0998 and 0.148, respectively, what would be the concentration of Mn² in Aliquot 1 ([X])? [X] [S]+[X] Ix Isx Q7.14×10¹M 12210 M 284 10° M 9.38×10 M 847-10M
The following is the brief summary of procedures for Expt. 8: Step 1: The unknown stock solution was prepared by dissolving 0.5185 g of a steel sample, yielding 100.0 mL of the solution . Step 2: Aliquot 1 was prepared by diluting 10.00 mL of the unknown stock solution to 50.00 ml.. . Step 3: Aliquot 2 was made by mixing 10.00 mL of the unknown stock solution and 3.00 ml. of 9.85 x 10 M Mn² solution (standard). and then this mixture was diluted to 50.00 ml. . Step 4: After oxidizing Mn2 to MnO4, absorbance was measured from both Aliquots 1 and 2. If the absorbance values measured from Aliquots 1 and 2 are 0.0998 and 0.148, respectively, what would be the concentration of Mn² in Aliquot 1 ([X])? [X] [S]+[X] Ix Isx Q7.14×10¹M 12210 M 284 10° M 9.38×10 M 847-10M
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter11: Solutions
Section: Chapter Questions
Problem 40P
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