2×10-4m solution of compound x has an absorbance of 0.450 at 500nm in a 1.0cm cell.

a. What is the absurbity of the solution?

b. What is the % transmittance of the solution?

c. What concentration of x will cause a 20% reduction in the radiant power if the same 1.0cm cell was used?

d. If the cell pathlenght was doubled, what concentration of the solution of x will give a 60% transmittance?