2022大学慕课答案 分析化学 Analytical Chemistry(中国药科大学) 最新大学MOOC满分章节测试答案

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本课程起止时间为:2022-02-21到2022-05-25
本篇答案更新状态:已完结

Chapter 1 Introduction to Spectroscopy and Molecular Spectroscopy Quiz of Chapter 1

1、 问题:To which of the following listed, Beer’s law is used to relate the measured absorbance of an analyte?
选项：
A:velocity
B:concentration
C:frequency
D:wavelength 
答案: 【concentration】

2、 问题:When light is pictured as the wave model, it is viewed as being an oscillating wave with an electrical-field component (moving from top to bottom) and a (               ) field component (moving from left to right).
选项：
A:perpendicular electric
B:perpendicular
C:perpendicular magnetic
D:large magnetic
答案: 【perpendicular magnetic】

3、 问题:Which of the following electromagnetic radiations will interact with matter by inducing change in nuclear configuration? (         )
选项：
A:UV-vis radiation
B:Microwave radiation
C:Infrared radiation
D:Gamma-ray radiation
答案: 【Gamma-ray radiation】

4、 问题:Which of the following statements about spectroscopy is wrong? (        )
选项：
A:Type of light in a spectrum correspond to the X-axis. 
B:The spectrum is what is observed when light is separated into its different bands. 
C:In homogenous system, absorbance is related to the concentration of substance.
D:Amount of light in a spectrum correspond to both the Y and the X-axis.
答案: 【Amount of light in a spectrum correspond to both the Y and the X-axis.】

5、 问题:Which of the following statements about spectroscopy is wrong?  (        )
选项：
A:Light absorbed can induce some effect on matter.
B:Quantitative information is found through the amount of light.
C:Concentration of an analyte is found through the type of light. 
D: Qualitative information is found through the type of light.
答案: 【Concentration of an analyte is found through the type of light. 】

6、 问题:Select among the listed, the properties of light as a wave. (        )
选项：
A:velocity
B:size
C:frequency
D:wavelength
答案: 【velocity;
frequency;
wavelength】

7、 问题:Selected the right information, those the spectrum can provide in the point of view of analysis. (          )
选项：
A:Qualitative information
B:Quantitative and Qualitative information simultaneously
C:Mechanical information
D:Quantitative information
答案: 【Qualitative information;
Quantitative and Qualitative information simultaneously;
Quantitative information】

8、 问题:In a spectrum, the two-dimensional graphic representation appears with, x-axis indicating the type of light that is being measured or observed. 
选项：
A:正确
B:错误
答案: 【正确】

9、 问题:From the discovery of Isaac Newton 1672, by the use of prism to separate a beam of white sun light into different spectral bands, the concept of light has been related to the chemical composition of the sample.
选项：
A:正确
B:错误
答案: 【正确】

10、 问题:Beer’s law is used to relate the measured absorbance of an analyte to its frequency
选项：
A:正确
B:错误
答案: 【错误】

11、 问题:In a spectrum, the two-dimensional graphic representation appears with, x-axis indicating the type of light that is being measured or observed; and the y-axis of the spectrum, showing the amount of light that is emitted by the particular source or that interact with a sample.
选项：
A:正确
B:错误
答案: 【正确】

【作业】Chapter 2 Ultraviolet-Visible Spectroscopy Homework of UV-Vis Spectroscopy

1、 问题:
评分规则: 【 For this question there are 4 points: 2′ for the correct formula and 2′ for the correct calculation result. (4分) 
】

2、 问题:(a)(b)Reason1:Reason 2:Reason 3:
评分规则: 【
】

Chapter 2 Ultraviolet-Visible Spectroscopy Qiuz of Chapter 2

1、 问题:In electronic transitions of the UV-Vis spectroscopy, how is called a shift to shorter wavelength or blue shift? (   )
选项：
A:Bathochromic
B:Hypsochromic
C:Hyperchromic
D:Hypochromic
答案: 【Hypsochromic】

2、 问题:In which color must be the sample dissolution solvent in UV-Vis spectroscopy? (          )
选项：
A:colorful 
B:colorless
C:red
D:yellow
答案: 【colorless】

3、 问题:To which analytical application of the UV-Vis spectroscopy is related the following image?  (          )
选项：
A:Direct measurements
B:Standard addition measurements
C:Spectrophotometric titrations
D:Measuring multiple analytes
答案: 【Spectrophotometric titrations】

4、 问题:In electronic transitions of the UV-Vis spectroscopy, how is called a shift to longer wavelength or red shift? (     )
选项：
A:Bathochromic
B:Hypsochromic
C:Hyperchromic
D:Hypochromic
答案: 【Bathochromic】

5、 问题:What is generally the range of UV-Vis wavelength for analytical measurement in the electromagnetic spectrum (EM)? (         )
选项：
A:1-800 nm
B:200-800 nm
C:400-800 nm
D:200-400 nm
答案: 【200-800 nm】

6、 问题:Which of the following analytical applications correspond to the UV-Vis Spectroscopy?  (       )
选项：
A:Direct measurements
B:Luminescence measurement
C:Spectrophotometric titrations
D:Standard addition measurements
答案: 【Direct measurements;
Spectrophotometric titrations;
Standard addition measurements】

7、 问题:Regarding the UV-Vis spectroscopy, selected among the listed, the right statements. (       )
选项：
A:A portion of a molecule that has properties that allow it to absorb light is known as a chromophore.
B:Absorption process can’t be described by using Beer’s law.
C:A typical chromophore in an organic molecule will contain π-ponds and will often have extended conjugation that tend to absorb ultraviolet or visible light efficiently.
D:The absorption of light in the ultraviolet or visible range is possible for transition metal ions. 
答案: 【A portion of a molecule that has properties that allow it to absorb light is known as a chromophore.;
A typical chromophore in an organic molecule will contain π-ponds and will often have extended conjugation that tend to absorb ultraviolet or visible light efficiently.;
The absorption of light in the ultraviolet or visible range is possible for transition metal ions. 】

8、 问题:An auxochrome attached to a chromophore with π electrons shifts the λmax to shorter wavelengths.
选项：
A:正确
B:错误
答案: 【错误】

9、 问题:Cuvette used in UV-Vis spectroscopy method must be transparent to UV radiation.
选项：
A:正确
B:错误
答案: 【正确】

10、 问题:The image below is related to the analytical application of the UV-vis spectroscopy called measuring multiple analytes.
选项：
A:正确
B:错误
答案: 【错误】

11、 问题:An auxochrome attached to a chromophore with π electrons shifts the λmax to longer wavelengths.
选项：
A:正确
B:错误
答案: 【正确】

Chapter 3 Molecular Luminescence Spectroscopy Quiz of Chapter 3

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