Adye solution of concentration 26 um shows the optical density of0.5 in a lcm quartz call at 400 nm. the molar extinction coefficient ofthe dye is given by (a)

Adye solution of concentration 26 uM shows the optical density of0.5 in a lcm quartz call at 400 nm. The molar extinction coefficient ofthe dye is given by (a) 1923.077 M mm (c)13000 M mm (6)52 M cm () Cannot be calculated Asolution containing 5 ppm of KMnO, (FW. =159) has a transmitance of0.360 measured in a 1 cm cell at 500 nm. The molar absorptivity of KMnO, in L mo cm is: (a) 1.1x 10 (b) 1.4x10 (c)1.9x10 (d)2.7x10.