• Consider the following laboratory experiment for the determination of Initrite concentration" (absorbance @ 550 nm): If you start an experiment by pipetting 5 mL aliquots of sample into five 50.00 mL volumetric flasks. Then, pipetting a volume of the standard solution containing 10.00 mM nitrite into each flask, respectively, followed by dilution to the 50.00 mL volume mark. The final absorbances were measured as shown on the table. Volume of standard solution (containing 10.00 mM nitrite) 0.00 mL 2.00 mL 4.00 mL 6.00 mL 8.00 mL • Absorbances (550 nm) 0.139 0.299 0.486 0.689 0.865 Draw a standard addition curve (absorbance vs volume of the standard added). • Calculate the nitrite concentration in the original sample. Applications

• Consider the following laboratory experiment for the determination of Initrite concentration" (absorbance @ 550 nm): If you start an experiment by pipetting 5 mL aliquots of sample into five 50.00 mL volumetric flasks. Then, pipetting a volume of the standard solution containing 10.00 mM nitrite into each flask, respectively, followed by dilution to the 50.00 mL volume mark. The final absorbances were measured as shown on the table. Volume of standard solution (containing 10.00 mM nitrite) 0.00 mL 2.00 mL 4.00 mL 6.00 mL 8.00 mL • Absorbances (550 nm) 0.139 0.299 0.486 0.689 0.865 Draw a standard addition curve (absorbance vs volume of the standard added). • Calculate the nitrite concentration in the original sample. Applications

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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