Chemistry Homework Help

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Unit Cell

Q. The unit cell of a compound consisting of cations A and B and oxide anions can be described as a cube with A cations at the body-centered positions, B cations at the corners of the cell, and oxide ions at the face centers. The simplest formula for the compound is:

Solved • Dec 28, 2019

Unit Cell

Q. The atomic radius of metal X is 1.20×10^2 picometers (pm) and a crystal of metal X has a unit cell that is face-centered cubic. Calculate the density of metal X (atomic weight = 42.3 g/mol).

Solved • Dec 13, 2019

Unit Cell

Q. The edge of a body-centered cubic cell of europium is 476 pm. What is the density of europium (atomic weight = 152.0)? 10.5 g/cm3 14.0 g/cm3 4.68 g/cm3 5.25 g/cm3 7.77 g/cm3

Solved • Dec 12, 2019

Unit Cell

Q. An unknown metal has a cubic structure with 2 atoms per unit cell. The density of the metal is 7.725g/cm3. An X-ray diffraction experiment measures the edge as 2.869 Å (1Å = 10-10m). The unknown element is: Ti Cu Mn Zn Ni

Solved • Dec 12, 2019

Unit Cell

Q. Silver crystallizes in a cubic lattice. Its unit cell of contains 4 atoms per cell. What is the system of the cubic cell? Body centered Face centered Simple

Solved • Dec 12, 2019

Unit Cell

Q. A unit cell of TiO2 contains one Ti4+ ion in the center of each face. What is the total number of ions contained in that cell? 6 8 9 3 10

Solved • Dec 11, 2019

Unit Cell

Q. What is the coordination number in a body centered cubic unit cell? 14 2 12 4 8

Solved • Dec 11, 2019