Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 3, Problem 187CP
Lanthanum was reacted with hydrogen in a given experiment to produce the nonstoichiomctric compound LaH2.90. Assuming that the compound contains H−, La2+, and La3−, calculate the fractions of La2+ and La3+ present.
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its just one question with parts till (g) JUST ONE QUESTION with its parts spread out in the form of different images attached 2 IMAGES ATTACHED PLEASE SEE ALL, please answer EACH part till the end and dont just provide wordy explanations wherever asked for structures or diagrams, please DRAW DRAW them on a paper and post clearly!! answer the full question with all details EACH PART CLEARLY please thanks!!
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The complex anion in Ba₂[Cr(CN)6] is a tetragonally distorted octahedral complex (Dan). Baz[Cr(CN)6] is
paramagnetic at room temperature with S = 1. Assume that the complex is a low-spin complex.
a) Identify if the [Cr(CN)6] anionic complex has 4 long and
2 short bonds (left side of figure) or if the complex has 4
short and 2 long bonds (right side of figure) with respect
to Oh symmetry. Use crystal field theory to answer this
question. Explain/rationalize your decision. Can the
provided information decide on the order of orbital
energies?
Dah
Tetragonal Distortion
ய
Dab
z-compression
z-elongation
x and y elongation
O symmetry
x and y compression
E
eg d² dx²-y²
t2g
dxy dxz dyz
Question 4 a) continued:
Provide your explanations in the space below.
b) At low temperatures Ba₂[Cr(CN)6] is ferromagnetically ordered with a phase transition to a paramagnetic
phase at Tc = 150K. Sketch the magnetic susceptibility vs. temperature in the diagram below. Indicate Tc
as well as the paramagnetic and…
Chapter 3 Solutions
Chemistry
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