Post-Lab 1. Cesium chloride structure a Why is it not proper to say that CSCI has a body-centered cubic structure? b. Thallium (1) chloride crystallizes in the cesium chloride lattice, as shown in Fig. 5. The shortest distance between the center of a TI' ion and the center of a CI ion is 333 pm. 1) What is the length of the edge of a unit cell of TICI? Hint: How many TICI diameters equal one body diagonal? 2) What is the density in g/cm' of TICI?
Post-Lab 1. Cesium chloride structure a Why is it not proper to say that CSCI has a body-centered cubic structure? b. Thallium (1) chloride crystallizes in the cesium chloride lattice, as shown in Fig. 5. The shortest distance between the center of a TI' ion and the center of a CI ion is 333 pm. 1) What is the length of the edge of a unit cell of TICI? Hint: How many TICI diameters equal one body diagonal? 2) What is the density in g/cm' of TICI?
Chemical Principles in the Laboratory
11th Edition
ISBN:9781305264434
Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Chapter16: The Structure Of Crystals-an Experiment Using Models
Section: Chapter Questions
Problem 2ASA: In an FCC structure, the atoms are found on the corners of the cubic unit cell and at the center of...
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Transcribed Image Text:Post-Lab
1. Cesium chloride structure
a. Why is it not proper to say that CSCI has a body-centered cubic structure?
b. Thallium (1) chloride crystallizes in the cesium chloride lattice, as shown in Fig. 5. The
shortest distance between the center of a TI' ion and the center of a CI ion is 333 pm.
1) What is the length of the edge of a unit cell of TICI? Hint: How many TICI diameters
equal one body diagonal?
2) What is the density in g/cm' of TICI?
2. Superconductors. Given the idealized unit cell for the structure of a superconductor shown
below to be orthorhombic, answer the following questions.
COPPR
a. How many copper atoms are there per unit cell? (Show calculations.)
b. What is the number of oxygens per unit cell? and Y? and Ba?
c. What is the formula for this superconductor?
d. The coppers in this unit cell occupy two different kinds of sites. Based on the number
of each of these types and the formula for the compound, what are the oxidation states for
copper in this compound?
The following Questions will likely require some research and reading outside of our
textbook! Go dig out the information that you need!
3.
a. What makes a substance a superconductor?
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