Dick and Jane measure the absorbance of their fish tank and get a value of 2.4.
ID: 12490 • Letter: D
Question
Dick and Jane measure the absorbance of their fish tank and get a value of 2.4. They make a solution of 1/2 strength and get an absorbance of 1.2. They then measure the absorbance of their friend Goofus's fishtank and get an absorbance of 3.0. Approximately how much gunk does Goofus's tank have in comparison to Dick and Jane's? Choose one answer.
four times as gunky
twice as gunky
50% more gunky
25% more gunky
Explanation / Answer
100% strength--> 2.4 Abs 50% strength--> 1.2 Abs 25% strength--> 0.6 Abs ---------------------------------------- 3.0 - 2.4 = 0.6 Abs difference; thus, Goofus`s tank is 25% more gunky.