You determine the absorbance of a solution to be 0.355 when the concentration of the absorbing ion is 3.5 x 10-5 M. What is the molar absorption (extinction) coefficient of the ion? The length of the light path is 1.0 cm
a. 1.0 x 10^4 L/mole-cm
b. 1.2 x 10^-5 L/mole-cm
c. 9.9 x 10^-5 L/mole-cm
d. 1.2 x 10^5 L/mole-cm