?

AP® Chemistry

Free Version

Upgrade subject to access all content

Easy

Beer's Law

APCHEM-06WE40

A student prepares a 0.10 M $CoCl_2$ solution and determines the absorbance of the solution at various wavelengths using a spectrophotometer. A graph of the results is shown below:

Created for Albert.io. Copyright 2016. All rights reserved.

Which of the following is the optimal wavelength for absorbance?

A

300 nm

B

375 nm

C

410 nm

D

550 nm