📅 NSB 2013🎓 HS🔄 Round 16#️⃣ Q23🌟 BONUS✍️ Short Answer
Arrange the following three methods of solvent degassing in order from least effective to most effective: 1) atmosphere exchange under sonication, 2) purging, 3) freeze-pump-thaw.
✔️Answer:2, 1, 3
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