Why is the formula weight appropriately used instead of the molecular weight in the case of the ionic compounds?
WBBSE
Class X
Physical Science
Ionic and Covalent Bond
02 Mark
2024
The formula weight is used for ionic compounds because they don’t consist of discrete molecules. Instead, they form a crystal lattice with repeating units, and the formula weight is the sum of the atomic weights of the ions in the formula unit. Molecular weight applies to covalent compounds, where discrete molecules exist.
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