In a lab experiment, you are asked to determine the molar concentration of a solution of an unknown compound, X. the solution diluted in half by water ( 1mL of X and 1mL of H2O) has an absorbance at 425 nm of 0.8 and a molar extinction coefficient of 1.5 x 10^3 M^-1 cm^-1. what is the molar concentration of the original solution of X?