The PH of a solution can be measured using the H+ ions concentration present in the solution. PH= -log(H+) H+ is the hydrogen ion concentration. or by knowing the OH- ion concentration. PH= 14- (-log(OH-)-log(OH-) is the pOH of the solution.
If you see a brown patch under the stem it's going to be a little gross inside. If you see a nice yellow-green patch you have a perfectly ripe avocado. Just make sure nobody at the grocery store notices you flicking the stems off a ton of avocados.
avocadoes. 1  1 : a pulpy green- to purple-skinned nutty-flavored fruit of any of various tropical American trees (genus Persea especially P. americana) of the laurel family; also : a tree bearing avocados. 2  2 : a light yellowish green.