Question

A simulated water sample is determined to have an absorbance of 0.169 at 550.8 nm. Determine the concentration of Fe(III) ions in the sample.

Answer 1

plug your information in the beer-lambert law.

Answer 2

The absorbance is given, but what would 550.8 nm be? Is that the path length of the light?

Answer 3

Also, what would be the molar absorptivity coefficient of the absorbing species?

Answer 4

@aaronq ^

Answer 5

it's the wavelength of light used

Answer 6

they would have to give you the value of \(\epsilon\), or if it's a known substance you can look it up.

Answer 7

ok thanks!

Answer 8

no problem !