Ch.11 - Liquids, Solids & Intermolecular ForcesWorksheetSee all chapters
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Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: X-rays with a wavelength of 13.6 nm are allowed to diffract off a sample of copper. The first angle of constructive interference is seen at 25.25°. Determine the distance (in nm) of separation between layers in the sample of copper.a. 31.9 nmb. 63.76 nmc. 15.94 nmd. 18.42 nme. 9.21 nm

Problem

X-rays with a wavelength of 13.6 nm are allowed to diffract off a sample of copper. The first angle of constructive interference is seen at 25.25°. Determine the distance (in nm) of separation between layers in the sample of copper.

a. 31.9 nm

b. 63.76 nm

c. 15.94 nm

d. 18.42 nm

e. 9.21 nm


Solution

Use the formula from Bragg’s Law to determine the distance of separation between the layers in the sample of copper.

The Bragg's Law defines the relationship between the wavelength of the incident X-rays, angle of incidence and spacing between the crystal lattice planes of atoms:

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