Recall: A zinc blende structure is a face-centered cubic unit cell. In a zinc blende structure:
The anions are located in the faces and corners of the unit cell
The cations are located in half of the tetrahedral holes present
In a single unit cell with a zinc blende structure, there are 4 cations and 4 anions present.
Recall that density is defined as:
We need to find the mass and volume of a single unit cell of HgS.
A particular form of cinnabar (HgS) adopts the zinc blende structure shown. The length of the unit cell side is 5.852 Å.
Calculate the density of HgS in this form.
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