What is aspirin's heat of formation?
By definiton the heat of formation is the enthalpy change associated (which is another way of saying the heat added or released) with the formation of a compound from its elements in their standard states. Envision that you could create any compound from atoms by snapping your finger; all you would need to do is have on hand the elements needed to form the compound. In the case of aspirin, which has the formula C9H8O4, you simply would need to have on hand charcoal (carbon), oxygen gas. and hydrogen gas. Take these elements, and with the imput of ...
It explains how to calculate the heat of formation of aspirin.