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- Amines, RNH2, react with picric acid to form amine picrate which absorbs strongly at 328 nm (ε = 17.15 L/mol.cm). A mass of 0.1825 g of the amine is dissolved in water and diluted to 100 mL. If this solution exhibits an absorbance of 0.336 at 328 nm using a 1.00 cm cell, what is the molar mass of the amine?When is the procedure of the transfer of the electron used? How is it useful?What is analogue in medicinal chemistry?Define briefly
- 1. Define: spectrochemical methods, spectroscopy, spectrometry, spectrometer, and spectrophotometer. 2. What is specific about the general analytical strategy for spectrochemical analysis methods comparedto instrumental analysis in general? 3. What is meant by the dual nature of light?Explain the meaning of the following terms and phrases: 1.1 Precision of a set of results. 1.2 Noise around an analytical signal. 1.3 A shelf-life of an aqueous trace metal standardWhat are the advantages and disadvantages of using quantum dots for fluorescence imaging?
- What is answer #10You have been asked to determine which heavy metals, if any are in a sample of sewage sludge. Why is atomic absorption spectroscopy not a good technique for the job and why is ICP- atomic emission spectroscopy a better choice?What procedures are utilized in optical analysis to determine a solution's concentration based on colorimeter absorbance measurements?