1. (a) What are the requirements that should be met for a precipitation reaction to serve as the basis of a gravimetric method? (b) What is "digestion"? In what ways can digestion improve the quality of an analytical precipitate? (c) A typical thermogravimetric curve for magnesium oxalate (MgC:O.) precipitates is given below. 18 134 226 398 478 900 Temperature, C Describe the weight loss as a function of temperature. Select a suitable ignition temperature for the gravimetric analysis of magnesium. Explain your choice. i. Predict the possible composition of the residues collected at the chosen temperature, i.
1. (a) What are the requirements that should be met for a precipitation reaction to serve as the basis of a gravimetric method? (b) What is "digestion"? In what ways can digestion improve the quality of an analytical precipitate? (c) A typical thermogravimetric curve for magnesium oxalate (MgC:O.) precipitates is given below. 18 134 226 398 478 900 Temperature, C Describe the weight loss as a function of temperature. Select a suitable ignition temperature for the gravimetric analysis of magnesium. Explain your choice. i. Predict the possible composition of the residues collected at the chosen temperature, i.
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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