4.a) Mention and describe the first method used for the synthesis of carbon nanotubes?(4)b) Numerous nanomaterials have been synthesized using Chemical Vapour Deposition(CVD) method. Mention five step mechanism that are involved in CVD process?(5)c) Describe and compare FTIR and Raman spectroscopyd) Discuss how the optical properties are measured using UV-VIS

(a) The arc-discharge method stands as one of the foundational techniques for the synthesis of…

Answered: 4. a) Mention and describe the first…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

11. (8pts) how can silica gel F2s4 TLC plates can be visualized ( give two methods? :
3D2: Recognize and interpret four levels of 1H NMR data: H group signal symmetry, peak height, signal splitting, and chemical shift (8) in the determination of organic structure. (a) Complete the data table for the given 'H NMR spectrum. 1H NMR Spectrum 10 9 label a b с d 8 7 6 8 (ppm) 1 5 1H, t (b) Deduce a structure for a MF of C6H12Osthat fits the 'H NMR data set. I 4 6H, s 1 3 2H, di #H (peak height/integral) 3H, s 2 1 splitting TMS 4 0 8 (ppm)
Potassium dichromate (K2Cr2O7) and potassium permanganate (KMnO4) give overlapping UV-Vis absorption spectra in 1 M sulphuric acid. K2Cr2O7 shows an absorption maximum at 440 nm and KMnO4 shows the absorption maximum at 545 nm . An unknown sample solution containing a mixture of K2Cr2O7 and KMnO4 was analyzed using a 1-cm cell and the absorbance values at these two wavelengths were as follows: A440 = 0.515 and A545 = 0.835 The absorbance values for standard solutions of K2Cr2O7 (1.00 x 10-3 M) and KMnO4 (2.00 x 10-4 M) in 1 M sulphuric acid using the same 1 cm cell were as follows: Calculate the concentrations of K2Cr2O7 and KMnO4 in the unknown sample.
Explain and justify your answer
1) Compare the techniques of open-path FTIR versus extractive FTIR using gas cells for the analysis of gaseous compounds. Contrast the difference in their instrumentation and analytical procedures and briefly state the analytical applications of each method 2) A Chromophore is___________ 3) The X-ray microanalysimicro analysis technique in a scanning electron microscope involves the transitions of___ 4) What are the radiation sources for Infrared and Near Infrared spectra 5) A typical source for Raman spectroscopy is________
and UV-vis (Ultraviolet-visible) spectroscopy instruments. Why is conductivity important when preparing SEM samples? Explain in detail. What in th
In general, we want to have absorptions less than or equal to 1. Given that an ethanol solution of compound Y (150.0 g/mol) in a 1.00 cm quartz cell has an extinction coefficient (E) of 23,150 at Amax=235 nm, what is the top concentration, in uM, we should consider for compound Y? Report your answer to the correct number of significant figures.
(iii) You wish to determine the fluorescence lifetime of your sample using Time Correlated Single Photon Counting, TCSPC. Draw a sketch showing the layout and principal components of a suitable setup and explain the basis of the technique.
True of false? 1. Raman Spectroscopy can be used in the airport to detect the presence of Alcohol in the bags? 2. Furnace atomisation is used when the concentration of the sample in the ppb level? 3. 24 karat of gold mean the percent of gold in the object is 75%?

Recommended textbooks for you

Chemistry

ISBN:

9781305957404

Author:

Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

Chemistry

ISBN:

9781259911156

Author:

Raymond Chang Dr., Jason Overby Professor

Publisher:

McGraw-Hill Education

Principles of Instrumental Analysis

Chemistry

ISBN:

9781305577213

Author:

Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:

Cengage Learning

Chemistry

ISBN:

9781305957404

Author:

Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

Chemistry

ISBN:

9781259911156

Author:

Raymond Chang Dr., Jason Overby Professor

Publisher:

McGraw-Hill Education

Principles of Instrumental Analysis

Chemistry

ISBN:

9781305577213

Author:

Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:

Cengage Learning

Organic Chemistry

Chemistry

ISBN:

9780078021558

Author:

Janice Gorzynski Smith Dr.

Publisher:

McGraw-Hill Education

Chemistry: Principles and Reactions

Chemistry

ISBN:

9781305079373

Author:

William L. Masterton, Cecile N. Hurley

Publisher:

Cengage Learning

Elementary Principles of Chemical Processes, Bind…

Chemistry

ISBN:

9781118431221

Author:

Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard

Publisher:

WILEY

SEE MORE TEXTBOOKS