Answered: Using the radius ratio, predict the…

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 63E: Calculate H298 for the process Sb(s)+52Cl2(g)SbCl4(s) from the following information:...

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1. Using the radius ratio, predict the type of hole where the Tl⁺ ion is present in the TlCl crystal lattice. The ionic radius of Tl⁺ is 1.64 Å and the ionic radius of Cl^- is 1.67 Å.

a.trigonal

b.cubic

c.tetrahedral

d.octahedral

2. The zincblende structure of ZnS is shown below: The edge length of this cubic unit cell is 540.9 pm. Determine the density of zincblende. The atomic masses of Zn and S are 65.38 amu and 32.065 amu, respectively.

a.4.091 g cm^-3

b.3.081 g cm^-3

c.1.023 g cm^-3

d.2.046 g cm^-3

3.The flotation process used in metallurgy involves __________.

a.chemical reduction

b.the roasting of sulfides

c.separation of gangue from ore

d.electrolytic reduction

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