Harvest the onions and the greens when they are at your preferred size and flavor. Keep in mind that you can also just pick up a cheap package of scallions from your farmerâs market or grocery store if you canât find regular sets of them from your nursery.
ionic compound precipitate from a solution of the constituent ions is when the solution is basic or acid. first the ionic compound is allowed to dissociate into ions, when almost all the ions are dissociated a strong acid or base is added to change the ph, in order to precipitate the ions
p.s. A preliminary calculation of what happens with salts (ions) indicate that they only have the same effect on the boiling point as other solutes when their concentration is significantly lower than the background ionic concentration in the solvent. In water that's 10 -7 M each of H + and OH - .