2) The equilibrium constant for the reaction 2CrO4 + 2H* ←→ Cr2O7²¯ + H₂O is 4.2x10¹4. The molar absorptivities at 400 nm for CrO4²- and Cr2O7²- are 1.88x10³ M¹ cm¹ and 1.89x10² M¹ cm¨¹, respectively. A solution was prepared by dissolving 3.00x104 moles of K2Cr2O7 in water and diluting to 1.00 L with a pH 5.60 buffer. Determine the theoretical absorbance value using a 0.50 cm cell.