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mass fraction:

mass fraction:

Chemistry
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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Question 14

**Question 14 of 14** A sample weighing 3.168 g is a mixture of Fe₂O₃ (molar mass = 159.69 g/mol) and Al₂O₃ (molar mass = 101.96 g/mol). When heat and a stream of H₂ gas is applied to the sample, the Fe₂O₃ reacts to form metallic Fe and H₂O(g). The Al₂O₃ does not react. If the sample residue (the solid species remaining after the reaction) weighs 2.380 g, what is the mass fraction of Fe₂O₃ in the original sample? **mass fraction:** [_______________] g Fe₂O₃ / g original sample
Transcribed Image Text:**Question 14 of 14** A sample weighing 3.168 g is a mixture of Fe₂O₃ (molar mass = 159.69 g/mol) and Al₂O₃ (molar mass = 101.96 g/mol). When heat and a stream of H₂ gas is applied to the sample, the Fe₂O₃ reacts to form metallic Fe and H₂O(g). The Al₂O₃ does not react. If the sample residue (the solid species remaining after the reaction) weighs 2.380 g, what is the mass fraction of Fe₂O₃ in the original sample? **mass fraction:** [_______________] g Fe₂O₃ / g original sample
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