Question

Which ionic compound would you predict to have a higher boiling point: NaBr or

Na2S
Why did you select this compound?

Answer 1

The boiling point of NaBr is higher than that of Na2S

Step-by-step explanation:

Bromine has higher electronegativity as compared to the sulphur. The ionic strength of the bond formed with Sodium is higher in the NaBr compound. The higher the ionic bond strength the higher will be the boiling point

Also the size of bromine is large as compared to that of sulphur. Large molecules consists of more electron and hence they create der Waals attractive forces due to which the boiling point of compound increases.

Hence, the boiling point of NaBr is higher than that of Na2S