Cyclohexanone exhibits its strongest ir absorption band at 5.86 μm, and at this wavelength there is a linear relationship between absorbance and concentration. (a) identify the part of the molecule responsible for the absorbance at this wavelength. (b) suggest a solvent that would be suitable for a quantitative analysis of cyclohexanone at this wavelength. (c) a solution of cyclohexanone (4.0 mg/ml) in the solvent selected in part (b) exhibits a blank-corrected absorbance of 0.800 in a cell with a path length of 0.025 mm. what is the detection limit for this compound under these conditions if the noise associated with the spectrum of the solvent is 0.001 absorbance units?