Chapter 9: Problem 59
The radius of gold is \(144 \mathrm{pm},\) and the density is \(19.32 \mathrm{g} / \mathrm{cm}^{3}\) Does elemental gold have a face-centered cubic structure or a body-centered cubic structure?
Chapter 9: Problem 59
The radius of gold is \(144 \mathrm{pm},\) and the density is \(19.32 \mathrm{g} / \mathrm{cm}^{3}\) Does elemental gold have a face-centered cubic structure or a body-centered cubic structure?
All the tools & learning materials you need for study success - in one app.
Get started for freeThe memory metal, nitinol, is an alloy of nickel and titanium. It is called a memory metal because after being deformed, a piece of nitinol wire will return to its original shape. The structure of nitinol consists of a simple cubic array of Ni atoms and an inner penetrating simple cubic array of Ti atoms. In the extended lattice, a Ti atom is found at the center of a cube of Ni atoms; the reverse is also true. a. Describe the unit cell for nitinol. b. What is the empirical formula of nitinol? c. What are the coordination numbers (number of nearest neighbors) of Ni and Ti in nitinol?
A common response to hearing that the temperature in New Mexico is \(105^{\circ} \mathrm{F}\) is, "It's not that bad; it's a dry heat," whereas at the same time the summers in Atlanta, Georgia, are characterized as "dreadful," even though the air temperature is typically lower. What role does humidity play in how our bodies regulate temperature?
What type of solid will each of the following substances form? a. \(\mathrm{CO}_{2}\) b. \(\mathrm{SiO}_{2}\) c. \(\mathrm{Si}\) d. \(\mathrm{CH}_{4}\) e. \(\mathbf{R} \mathbf{u}\) f. \(\mathrm{I}_{2}\)
It is possible to balance a paper clip on the surface of water in a beaker. If you add a bit of soap to the water, however, the paper clip sinks. Explain how the paper clip can float and why it sinks when soap is added.
You have three covalent compounds with three very different boiling points. All of the compounds have similar molar mass and relative shape. Explain how these three compounds could have very different boiling points.
What do you think about this solution?
We value your feedback to improve our textbook solutions.