Hey,

A few days ago we were taught different equations relating to heat of solution. We were given a lab (Heat of Solution) and have to determine the molar heat of solution. I have been looking everywhere for this equation but I can't find it. I really confused and the lab is due Monday.

Does anyone know the equation? It'll help me tremendously if someone know it. Thanks in advance!

-Arianna

Is this what you want?

I hope so :) Otherwise I'll fail my lab. Thank you for answering!

∆Hexp = |mC∆T|, where ∆Hexp is the experimental value (taken as positive) for change heat, m is the mass of water, C is the specific heat capacity of water and ∆T is the change in temperature (initial temperature minus final temperature).

The molar heat of solution or ∆Hsoln (expressed in kJmol-1) is the amount of heat energy absorbed by one mole of the salt. It is calculated by dividing ∆Hexp by the number of moles of the salt that took place in the reaction. The real value for ∆Hexp is used as a negative value for ∆Hsoln indicates that heat energy was released.