Question 1 [40 marks] (a) Table 1 present experimental data related to the absorbance of two compounds over a range of concentration, in a UV-Vis cell with path length I = 1.0 cm. From this table: (i) Estimate the molar absorptivity of both compounds. (ii) With reference to the type(s) of electronic transitions you expect to be the dominant contributor in each absorption spectrum, justify why compound 1 is more intensely coloured than compound 2. Table 1: Experimental data related to the absorption spectra of two inorganic compounds. xx. K+ HO... OH C * K+ HO OH OH2 2+ (b) Compound 1 Compound 2 Concentration Absorbance Concentration / Absorbance / mM mM 0.02 0.1 0.5 0.024 0.08 0.38 1.7 0.081 0.17 0.75 4 0.171 0.27 1.15 7.6 0.32 0.5 2.13 11.2 0.49 [10 marks] State the Raman scattering intensity equation, and define each term in the equation. Subsequently, with reference to this equation, determine how much greater the Raman scattering of a compound will be upon shifting the incident laser wavelength from 785 nm to 244 nm, assuming that all other variables remain equal. [6 marks]