Determine the ranking for increasing melting point by calculating the lattice energy
Recall that the melting point of an ionic compound is related to its lattice energy. The lattice energy can be estimated using:
This means the compound with the highest lattice energy has the highest melting point.
Based on the lattice energy trends, put the following ionic compounds in order from lowest melting point to highest melting point.
CaO MgO SrS
a. SrS < CaO < MgO
b. CaO < SrS < MgO
c. MgO < CaO < SrS
d. SrS < MgO < CaO
e. CaO < MgO < SrS
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What scientific concept do you need to know in order to solve this problem?
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