Hello everyone, I have trouble figuring out how a reflux truly works. I understand the concept but not the exact science behind it.
Let's say I have 1 mL of a reactant, to be refluxed for 12 hours in 25 mL of acetic acid, ratio 1:25 in the synthesis, yield is 70%. The reactant solution gets dissolved into the solvent over that 12 hours, a carboxylic acid, and creates a final solution. The dissolved reactant solution fuses with a certain amount of the solvent, and the rest of the solvent that doesn't have anymore elements to combine with the reactant is later filtered, washed and dried off the new solution.
So when you read a reflux synthesis, when they say 70% yield, is it 70% yield of the reactant with the solvent total weight, or 70% yield of just the reactant itself, because even though it dissolves in the solvent, they aren't creating a new solution. And if it's just 70% yield of the reactant solution only, why does a reactant-solvent ratio matter in a reflux?
Please help me understand the science behind a reflux.