The amount of light  absorbed by a solution is given by .

a.

Find how much light does the sample absorb to the nearest hundredth.

Since the percent of light transmitted through the first sample is , .

.

Light does the sample absorb to the nearest hundredth .

b.

Find percent of the light entering the solution is transmitted.

Absorption of the second sample is .

Substitute in .

Use the definition of logarithm : If  then  , Where , , and .

percent of the light entering the solution is transmitted .

a. Light does the sample absorb to the nearest hundredth .

b. Percent of the light entering the solution is transmitted .