Why is the atomization enthalpy of Na (s) lower than the sublimation enthalpy of Na? atomization enthalpy of Na= 107 kJ/mol
sublimation enthalpy of Na =108 kJ/mol

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity