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Problem: Assume the two-dimensional structure of an ionic compound, M xAy, isWhat is the empirical formula of this ionic compound?

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  contribution
corner atoms                                 1/8
atoms in center                             1
atoms in face of the cube            1/2 


Yellow spheres → smaller → cation → M

• arranged in FCC (face-centered cubic unit cell)

• in FCC: 8 corner ions and 6 face ions

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Problem Details

Assume the two-dimensional structure of an ionic compound, M xAy, is

What is the empirical formula of this ionic compound?

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Based on our data, we think this problem is relevant for Professor Pietrovi & Davies' class at UPENN.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.