Six 10.00 mL samples of raw milk were treated with 0, 5.00, 10.00, 15.00, 20.00, and 25.00 µg of zinc ion and diluted to 50.00 mall The absorbances of these solutions were 0.235, 0.292, 0.346, 0.397, 0.458 and 0.510. a) Identify the calibration method used. (Standard Addition, Internal Standard, or External Standard?) b) Calculate the ppm Zn in the sample of milk.
Six 10.00 mL samples of raw milk were treated with 0, 5.00, 10.00, 15.00, 20.00, and 25.00 µg of zinc ion and diluted to 50.00 mall The absorbances of these solutions were 0.235, 0.292, 0.346, 0.397, 0.458 and 0.510. a) Identify the calibration method used. (Standard Addition, Internal Standard, or External Standard?) b) Calculate the ppm Zn in the sample of milk.
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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Six 10.00 mL samples of raw milk were treated with 0, 5.00, 10.00, 15.00, 20.00, and 25.00 µg of zinc ion and diluted to 50.00 mall The absorbances of these solutions were 0.235, 0.292, 0.346, 0.397, 0.458 and 0.510.
a) Identify the calibration method used. (Standard Addition, Internal Standard, or External Standard?)
b) Calculate the ppm Zn in the sample of milk.
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