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Classification of Matter A.2 Classification of Organic Compounds (id: 8ace90d8f)

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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]
Compounds X and Y have the following structural formulas.


1.The IR spectrum of compound Y features a signal that is not present in the IR spectrum of compound X. Using section 26 (section 20- 2025 Syllabus) of the data booklet, state the range of wavenumbers in which this IR signal occurs.
2.The 1HNMR spectrum of compound X was recorded using electromagnetic radiation with a wavelength of 1m.
The spectrum contains two signals with chemical shifts of 3.47 and 1.21 ppm. The integral of the signal at 1.21ppm is set to a value of 1.
(1)State the type of electromagnetic radiation used in this experiment, using section 3 (section 5- 2025 Syllabus) of the data booklet.
(2)Calculate the integral of the signal at 3.47ppm.
(3)Suggest two features that would be present in the 1HNMR spectrum of Y but not in the spectrum of X, using section 27 (section 21 NS) of the data booklet.
3.The mass spectrum of one of the compounds is shown.




1.State the m/z value of the molecular ion peak.
2.Explain how the identity of the compound can be determined from the peak at m/z = 43, using section 28 (section222025Syllabus) of the data booklet.




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