How much heat (in kJ) is released when 1.65 mol NaOH(s) is dissolved in water? (The molar heat of solution of NaOH is -445.1 kJ/mol)

1 Answer
Dec 30, 2017

This is merely a dimensional analysis of heat evolution upon dissolution of solute in solvent.


#1.65"mol" * (-445.1kJ)/("mol") approx -734kJ#

In English, if I mix this much table salt in a volume of distilled water, that much heat is released. In simpler terms, the water will become warmer.