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Twelve dietary iron tablets were analyzed by the gravimetric procedure in Section 1-4
Chapter 3, Problem 3-20(choose chapter or problem)
Twelve dietary iron tablets were analyzed by the gravimetric procedure in Section 1-4 and the final mass of Fe2O3 (FM 159.688) was 0.2774 0.0018 g. Find the average mass of Fe per tablet. (Relative uncertainties in atomic masses are small compared with relative uncertainty in the mass of Fe2O3. Neglect uncertainties in atomic masses in this problem.)
Questions & Answers
QUESTION:
Twelve dietary iron tablets were analyzed by the gravimetric procedure in Section 1-4 and the final mass of Fe2O3 (FM 159.688) was 0.2774 0.0018 g. Find the average mass of Fe per tablet. (Relative uncertainties in atomic masses are small compared with relative uncertainty in the mass of Fe2O3. Neglect uncertainties in atomic masses in this problem.)
ANSWER:Step 1 of 5
The given final mass of (FM 159.688) is 0.2774 0.0018 g. As the relative uncertainties in atomic masses are smaller than in , atomic mass uncertainties are to be neglected. The average mass of Fe in the iron tablets is to be determined.