One technique often performed in this state uses a Buchner funnel to extract a dissolved solid from a solvent. Another technique performed in this state uses a spin bar instead of boiling chips, because that variant does not need to heat the liquid. Water-traps and water aspirators are occasionally used in both the aforementioned namesake filtration and distillation techniques. Experiments carried out in this state usuall
One technique often performed in this state uses a Buchner funnel to extract a dissolved solid from a solvent. Another technique performed in this state uses a spin bar instead of boiling chips, because that variant does not need to heat the liquid. Water-traps and water aspirators are occasionally used in both the aforementioned namesake filtration and distillation techniques. Experiments carried out in this state usually require Pyrex or round-bottomed glassware because Erlenmeyer flasks or those with (*) cracks may spontaneously collapse. The two walls of a Dewar flask are separated by material in this state, which is often achieved by means of a pump. For 10 points, name this state in which a near-complete lack of vapors leads to extremely low pressure.
One technique often performed in this state uses a Buchner funnel to extract a dissolved solid from a solvent.
vacuum [or more specific answers such as high vacuum or ultra high vacuum; accept vacuum filtration until read; accept vacuum distillation until read; prompt on "low pressure"]