Question 2-A A chemist did an experiment for the determination of iron content in an iron ore. The following are the steps in the procedure: • Weighing of 1.0000 grams of sample or powdered iron ore. • Acid digestion of 1.0000 grams of iron ore by adding excess 10% of HCI. • After digestion, an excess amount of ammonia was added to form the precipitate Fe,O3. • The precipitate is filtered out and subjected to heat. Finally, the weight of precipitate was determined, and calculation is followed and the mass of Fe in the sample is 0.3587 grams. Consider the following statement: Statement I: The experiment is a classical-volumetric method of analysis. Statement II: The experiment is a macroanalysis based on the amount of sample. Statement III: The experiment is a minor analysis based on the amount of analyte. Which of the following option is correct? O A. Statement I is correct and statement Il and II are incorrect B. Statement Il is correct and statement I and II are incorrect OC. Statement I and Il are correct and statement II is incorrect D. Statement Il and IIl are correct and statement I is incorrect O E. Statement I, II, and III are correct

Question 2-A A chemist did an experiment for the determination of iron content in an iron ore. The following are the steps in the procedure: • Weighing of 1.0000 grams of sample or powdered iron ore. • Acid digestion of 1.0000 grams of iron ore by adding excess 10% of HCI. • After digestion, an excess amount of ammonia was added to form the precipitate Fe,O3. • The precipitate is filtered out and subjected to heat. Finally, the weight of precipitate was determined, and calculation is followed and the mass of Fe in the sample is 0.3587 grams. Consider the following statement: Statement I: The experiment is a classical-volumetric method of analysis. Statement II: The experiment is a macroanalysis based on the amount of sample. Statement III: The experiment is a minor analysis based on the amount of analyte. Which of the following option is correct? O A. Statement I is correct and statement Il and II are incorrect B. Statement Il is correct and statement I and II are incorrect OC. Statement I and Il are correct and statement II is incorrect D. Statement Il and IIl are correct and statement I is incorrect O E. Statement I, II, and III are correct

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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