Question

Helllppp i have a test!!!!

Answer 1

Answer:

0.00271 M

Explanation:

To solve this problem we can use the formula:

• A = ε * C * l

Where A is the absorbance, ε is the molar absorptivity, C is the molar concentration and l is the optical path length.

We input the data given by the problem:

• 0.111 = 40.9 cm⁻¹M⁻¹ * C * 1.00 cm

And solve for C:

• C = 0.00271 M