Question
Drops are collected during this technique in the receiving flask whenever the temperature plateaus. For 10 points each:
[10m] Name this technique whose laboratory apparatus consists of: [read slowly] a round-bottom glass flask immersed in a mantle, attached to a tall glass column, with a cold finger on top that leads to the receiving flask.
ANSWER: distillation [or simple distillation; or fractional distillation; prompt on refluxing]
[10e] The first drop collected in the distillate is the chemical with the lowest value for this temperature, since it vaporizes first.
ANSWER: normal boiling point [or BP; or boiling temperature; prompt on boiling]
[10h] Exact term required. Raschig rings and ceramic saddles are used as this type of material in both lab-scale and industrial distillation columns. These materials give a purer product by reducing the vapor flow rate.
ANSWER: column packing [or making a packed column; prompt on filling materials]
<Adam Silverman, Science - Chemistry> ~22783~ <Editor: Adam Silverman>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 36 | 16.94 | 97% | 72% | 0% |