Packet 1: Bonus 4
After cells are lysed, one can utilize the phenol-chloroform variant of this technique on DNA. For 10 points each:
[10h] Name this technique. A pear shaped funnel utilized in this technique undergoes cycles of shaking and venting to form distinct layers.
ANSWER: extraction [accept phenol-chloroform extraction or liquid-liquid extraction]
[10e] Extraction often utilizes two of these substances with different properties. These substances dissolve solutes in a solution.
ANSWER: solvents
[10m] After extractions are completed, chemists often dry the resulting organic layer of any residual water by using a compound of sodium and this anion. Magnesium’s salt with this anion is called Epsom Salt.
ANSWER: sulfate
<Science- Chemistry, Rohan Ganeshan> | VAULT II Packet 01
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 45 | 12.89 | 93% | 27% | 9% |
Conversion
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| VAULT II at Georgia Tech | 2026-01-24 | ✓ | 6 | 16.67 | 100% | 50% | 17% |
| Triangle Cup | 2026-03-13 | ✓ | 3 | 10.00 | 100% | 0% | 0% |
| VAULT II at Eden Prairie HS | 2026-03-13 | ✓ | 3 | 10.00 | 67% | 33% | 0% |
| VAULT II at McGill | 2026-03-13 | ✓ | 4 | 7.50 | 75% | 0% | 0% |
| VAULT II at UCSB | 2026-03-13 | ✓ | 5 | 14.00 | 100% | 20% | 20% |
| VAULT II Northern UK | 2026-04-24 | ✓ | 3 | 10.00 | 100% | 0% | 0% |
| VAULT II Southern UK | 2026-04-24 | ✓ | 4 | 12.50 | 100% | 25% | 0% |
| VAULT II at Harvard | 2026-04-30 | ✓ | 4 | 10.00 | 75% | 25% | 0% |
| VAULT II at MINT | 2026-06-19 | ✓ | 5 | 10.00 | 100% | 0% | 0% |
| VAULT II Stanford Online | 2026-07-17 | ✓ | 8 | 18.75 | 100% | 63% | 25% |