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Listening Quiz: Phổ Biến Yêu Cầu Đặc Trưng Hóa Cho Hợp Chất Mới – Advanced Level
Th6 3, 2025
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bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
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1.
What is the first goal Paul mentions for analyzing the new compound?
To measure its melting point
To confirm the compound’s purity
To determine its color
To test its smell
Explanation:
Paul says they need to confirm the compound’s purity first.
2.
Which method does Paul say is essential for purity testing?
Mass spectrometry
Nuclear magnetic resonance
Differential scanning calorimetry
High-performance liquid chromatography
Explanation:
Paul states that high-performance liquid chromatography is essential for purity testing.
3.
What does Paul say nuclear magnetic resonance will provide?
Weekly progress reports
Detailed structure information
The molecular weight
The compound’s stability over time
Explanation:
Paul says nuclear magnetic resonance will give them detailed structure.
4.
What must the samples be like before analysis?
Hot and liquid
Mixed and diluted
Frozen and sealed
Pure and dry
Explanation:
Paul explains that samples must be pure and dry before analysis.
5.
How often will the team receive updates on the results?
Daily
Monthly
Weekly
Every two weeks
Explanation:
Paul says weekly reports will keep the team updated.
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