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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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fodog414 fodog414
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9 years ago
 Frowning Face Frowning Face Frowning Face Frowning Face could someone explain how we come to the answer?
You don't need to solve it just explain

Which of the following ionic compounds has the largest lattice energy (i.e., the lattice energy most favorable to a stable lattice)?
A)
BaO
B)
BeO
C)
CsI
D)
NaBr
E)
BaS


Which of the following ionic compounds has the smallest lattice energy (i.e., the lattice energy least favorable to a stable lattice)?
A)
LiF
B)
CsI
C)
NaCl
D)
BaO
E)
MgO
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Replies
wrote...
#1
Staff Member
9 years ago
See if this helps you.

Similar Question
Which ionic compound is expected to have the larger lattice energy in each of the following pairs?

a) NaCl and NaBr b) NaCl and KCl c) MgO and CaO
d) KCl and CaO e) NaCl and MgS f) NaCl and NaNO3
g) KBr and LiF

Answer:

The lattice energy depends on the size and charge of the ions. The smaller they are and the higher their charge the stronger the lattice energy.

So we have the stronger lattice in:

a) NaCl Cl is smaller than Br
b) NaCl Na is smaller than K
c) MgO Mg is smaller than Ca
d) CaO has a higher charge than KCl (2+ instead of 1+)
e) MgS has a higher charge than NaCl (2+ instead of 1+)
f) NaCl Cl is smaller than NO3
g) LiF both Li and F are smaller than K and Br respectively
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fodog414 Author
wrote...
#2
9 years ago
Thank you for the post duddy. I'm still struggling to grasp the concept for some reason  Nerd Face Confounded Face
Answer accepted by topic starter
duddyduddy
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#3
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9 years ago
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fodog414 Author
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#4
9 years ago
Wow, thank you for that! Slight Smile
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