o safely and efficiently use a separatory funnel; (Check all that apply) UBC Chemistry. Do not screenshot, copy, reproduce, or distribute. This question is part of an assessment that is to be completed individually and without any assistance. Group of answer choices You do not need to hold the stopper while shaking the funnel as it is screwed in place. The liquid in a separatory funnel should never exceed 2/3 of the total possible volume of the funnel. You should vigorously shake the mixture until it looks well combined then place on ring clamp and begin dispensing immediately. Vent the separatory funnel frequently to release pressure build-up using the stopcock. When venting, the separatory funnel should be inverted and pointed away from other people (including yourself). You should check that the stopcock is neither too tight nor too loose and that the stopper fits correctly