How can I figure out which two solutions will emit the largest heat, when they are mixed in same volumes? Then let's assume that there are five pairs of solutions given:
\begin{align} \ce{2NaOH + H2SO4 &-> Na2SO4 + 2H2O} \tag1\\ \ce{Ba(OH)2 + H2SO4 &-> BaSO4 + 2H2O} \tag2\\ \ce{2NH4OH + H2SO4 &-> (NH4)2SO4 + 2H2O} \tag3\\ \ce{NaOH + H3CCOOH &-> H3CCOONa + H2O} \tag4\\ \ce{2NaOH + H2C2O4 &-> Na2C2O4 + 2H2O} \tag5 \end{align}
Which one emits the most heat, when we mix same volumes of given pairs?
These are the balanced reaction equation, that occur when the above solutions are mixed. All of these reactions are acid base reactions. And I know when there is an acid base reaction a salt is formed. So how can I proceed with it?