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A mineral crystallizes in a cubic closest packed array of oxygen ions with aluminum ions in some of the octahedral holes and magnesium ions in some of the tetrahedral holes. Deduce the formula of this mineral and predict the fraction of octahedral holes and tetrahedral holes that are filled by the various cations.
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Chemistry: An Atoms First Approach
2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
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BuyFindarrow_forward
Chemistry: An Atoms First Approach
2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 9, Problem 86E
Textbook Problem
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A mineral crystallizes in a cubic closest packed array of oxygen ions with aluminum ions in some of the octahedral holes and magnesium ions in some of the tetrahedral holes. Deduce the formula of this mineral and predict the fraction of octahedral holes and tetrahedral holes that are filled by the various cations.
Interpretation Introduction
Interpretation: The formula of given cubic closest packed mineral should be determined and the fraction of tetrahedral holes and octahedral holes are to be predicted.
Concept introduction:
Cubic closest packed structure:
- The arrangements of ions in the crystal lattice are in uniformed layers. This layer arrangement is due to the space and holes of lattice in crystals. Ions are formed layers and layers are arranged to give closest packed structures.
- The layer arrangement is in the form of a-b-c-a is called as cubic closest packed structure.
Explanation of Solution
Explanation
To determine the formula of given cubic closest packed mineral.
The formula given cubic closest packed structured crystallized mineral is
- The array of oxygen ions in the cubic closest packing
- The charge of aluminum is
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Chemistry: An Atoms First Approach
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