Chapter 10: Q75E. (page 592)
Describe the crystal structure of iron, which crystallizes with two equivalent metal atoms in a cubic unit cell.
The crystal structure of the iron is body centred cubic structure.
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Consider a cylinder containing a mixture of liquid carbon dioxide in equilibrium with gaseous carbon dioxide at an initial pressure of \({\rm{65}}\) atm and a temperature of \({\rm{2}}{{\rm{0}}^{\rm{o}}}{\rm{C}}\). Sketch a plot depicting the change in the cylinder pressure with time as gaseous carbon dioxide is released at constant temperature.
What is the coordination number of an aluminum atom in the face-centered cubic structure of aluminum?
Identify the type of crystalline solid (metallic, network covalent, ionic, or molecular) formed by each of the following substances:
\(\begin{array}{l}{\rm{(a)CaC}}{{\rm{l}}_{\rm{2}}}\\{\rm{(b)SiC}}\\{\rm{(c)}}{{\rm{N}}_{\rm{2}}}\\{\rm{(d)Fe}}\\{\rm{(e)C(graphite)}}\\{\rm{(f)C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}\\{\rm{(g)HCl}}\\{\rm{(h)N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}\\{\rm{(i)}}{{\rm{K}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\end{array}\)
The surface tension and viscosity values for diethyl ether, acetone, ethanol, and ethylene glycol are shown here
(a) Explain their differences in viscosity in terms of the size and shape of their molecules and their IMFs.
(b) Explain their differences in surface tension in terms of the size and shape of their molecules and their IMFs:
Lithium selenide can be described as a closest-packed array of selenide ions with lithium ions in all of the tetrahedral holes. What is the formula of lithium selenide
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