You are given a solution of a substance that has a concentration of 10 mmol/L in a non- absorbing solvent. The solution was placed in a 2.0 mm thick cuvette (optical path length) and the transmission of 256 nm light through the sample was observed to be 48%. What is the molar absorption coefficient of the sample at 256 nm? What would be the transmittance when using a 4.0 mm thick cuvette at the same wavelength? Question 2 IR measurement of gaseous HCI sample yields the following molecular constants: Ve = 2990.95 cm-1 and xe 0.01766. a) Calculate the spectroscopic dissociation energy using Morse potential function. b) How does the calculated value compare with the known dissociation energy of HCI. If they are different, give a reason.