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A: Detail description is given below
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A: Correct answer : tetra(cyanido-μC)nickelate (II) ion Explanation and structure given below. Thank…
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A: Which isoelectronic has largest radius?
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A: The answer to the following question is-
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A: Ist question: Answer of ist question is (a) , explained with a mechanism.
Define a molar extinction coefficient and briefly describe how it is measured.
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- In freundlich absorption isotherm the value of 1/n isConsider the quenching of an organic fluorescent species with τ0 = 6.0 ns by a d-metal ion with kQ = 3.0 × 108 dm3 mol−1 s−1. Predict the concentration of quencher required to decrease the fluorescence intensity of the organic species to 50 per cent of the unquenched value.Consider the unimolecular decomposition of a nonlinear molecule containing five atoms according to RRK theory. If kb(E)/kb = 3.0 × 10−5, what is the value of E*/E?
- Circumstances for the use of nRIn(V2/V1) and CvIn(T2/T1) in calculating ∆SIf the solubility of a drug is 3.8g/L and in chloroform 226g/L calculate its partition coefficient to 1 decimal placeFor a molecule, the phosphorescence lifetime without quenching is 1.0 s while with a quencher population of 10-2 M the phosphorescence lifetime is 0.10 s. Calculate the rate constant for phosphorescence assuming that kisc >> (kF + kec + kic). Calculate the rate constant for external conversion of the triplet state (kec’), the quenching rate constant for the triplet state (kq’), and the Stern-Volmer quenching constant. Assume that intersystem crossing from T1 to So is negligible.
- A student conducted an experiment to determine the concentration of benzene in an ethanol solution. Use the UV spectrum of the solution in a 2.0 cm cell. Within the spectrum, there was a peak attributed to benzene at 260 nm, with an absorption of 0.69. In a reference source, the student found that the adsorption of the benzene strip with ethanol was 2.95 x 10-3 ppm cm-. What is the molar concentration of benzene in the sample (mm of benzene = 78.11 g/mol)Calculate the absorption maximum of isatin (1H-indole-2,3-dione) using the Woodward-Fieser rules.Radiation of wavelength 300 nm was passed through a chemical actinometer containing 10 ml of a 0.05M oxalic acid solution and 0.01M uranyl sulphate. The concentration of oxalic acid solution became 0.03M after absorption of 80J radiation energy. Calculate the quantum yield of the photodecomposition of the oxalic acid?
- What is the difference between absorption and adsorption?What are the similarities between fluorescence detectors in HPLC and chemiluminescence detectors in HPLC?The reaction is sodium dichromate with ethanol in the presence of H2SO4, not just ethanol alone reacted under sodium dichromate with H2SO4. There should be an ion as a product, that produces a species that will absorb at 600 nm