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Classification of Matter A.2 Classification of Organic Compounds (id: 4556b34f7)

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admin 发表于 2024-2-5 18:11:02 | 显示全部楼层 |阅读模式
本题目来源于试卷: Classification of Matter A.2 Classification of Organic Compounds,类别为 IB化学

[问答题]
The IR and $^1H$ NMR spectra of compound C are shown.




Compound C contains one $CH_3$ group and one functional group. The $^1H$ NMR signals of the compound do not change if a base is added to the NMR sample.
1.Using section 27 ($section 21- 2025 Syllabus$) of the data booklet, determine the number of $CH_2$ groups in compound C.
2.Using sections 26 and 27 (sections 20 and 21- 2025 Syllabus) of the data booklet, identify the functional group in compound C. 3.Give two reasons for your answer.
4.Draw the full structural formula of compound C.
The empirical formula of compound C was confirmed by measuring its elemental composition. Using your answer to (c) and section 6 (section 7- 2025 Syllabus) of the data booklet, calculate the expected abundance of carbon as a percentage of the molar mass.




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