Homework Answers – Constant T so P vap is constant at 28.0 mm Hg – a) melting, b) no change, still liquid – boils when P atm gets down to P vap – 36.6 kJ released – 26.9 kJ released – – 7.12 J/(K∙mole) – BP = 77˚C, Pvap = 58.9 mm Hg Copyright © 2008 Pearson Prentice Hall, Inc.Chapter 1/1
Unit Cells in Crystalline Solids Copyright © 2008 Pearson Prentice Hall, Inc.
Chapter 10/6 Probing the Structure of Solids: X-Ray Crystallography Diffraction: Occurs when electromagnetic radiation is scattered by an object containing regularly spaced lines (such as a diffraction grating) or points (such as the atoms in a crystal). Interference: Occurs when two waves pass through the same region of space.
Copyright © 2008 Pearson Prentice Hall, Inc.Chapter 10/7 Probing the Structure of Solids: X-Ray Crystallography Bragg Equation: d = 2 sin n
ATP by X-ray diffraction
Copyright © 2008 Pearson Prentice Hall, Inc.Chapter 10/11 Unit Cells and the Packing of Spheres in Crystalline Solids Body-Centered Cubic Packing Simple Cubic Packing
Copyright © 2008 Pearson Prentice Hall, Inc.Chapter 10/14 Unit Cells and the Packing of Spheres in Crystalline Solids Cubic Closest- Packing Hexagonal Closest- Packing
Copyright © 2008 Pearson Prentice Hall, Inc.Chapter 10/15 Unit Cells and the Packing of Spheres in Crystalline Solids Unit Cell: A small repeating unit that makes up a crystal.
Primitive cubic unit cell
Body-centered cubic unit cell
Body-centered cubic unit cell Primitive cubic unit cell
Face-centered cubic unit cell
Structures of Some Ionic Solids
H46 – C – 10.16, 10.23, 10.25,10.73 – 10.77(odd), 10.79*, 10.83*, , *