Asolution of a specific vitamin has λmax = 273 nm and a concentration of 8.33 × 10-7 m. the absorbance of the solution at 273 nm is a = 0.180. what is the molar absorptivity of the vitamin at 273 nm? (sample pathlength = 1.00 cm)

Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Define dew point. i am writing this part to be able to ask the question