A particular form of cinnabar (HgS) adopts the zinc blende structure, Figure 12.26. The length of the
Question:
(a) Calculate the density of HgS in this form.
(b) The mineral tiemmanite (HgSe) also forms a solid phase with the zinc blende structure. The length of the unit cell edge in this mineral is 6.085 Å. What accounts for the larger unit cell length in tiemmanite?
(c) Which of the two substances has the higher density? How do you account for the difference in densities?
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Related Book For 
Chemistry The Central Science
ISBN: 978-0321696724
12th edition
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward
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