CHM2046L Final Exam UF Spring 2026 Study Guide Course Overview CHM2046L is the General

CHM2046L Final Exam UF Spring 2026 Study Guide Course Overview CHM2046L
is the General.

📝 CHM2046L Final Exam Practice Questions

Source: University of Florida Chemistry 2 Lab (Spring 2026 Review)



Section 1: Spectrophotometry & Beer-Lambert Law

Q1. A solution of a colored compound has an absorbance of 0.451 at a
concentration of

2.0

×

10

−

5

2.0×10

−5

M in a 1.00 cm cuvette. What is the molar absorptivity (ε)?

A)

1.13

×

10

,3

1.13×10

3



B)

2.26

×

10

4

2.26×10

4



C)

4.52

×

10

4

4.52×10

4

,D)

9.04

×

10

4

9.04×10

4




Answer: B

Rationale: Using the Beer-Lambert law,

A

=

ε

d

c

A=εdc. Rearranging:

ε

, =

A

/

(

d

c

)

=

0.451

/

(

1.00

×

2.0

×

10

−

5

)