- #1
Chaz32621
- 6
- 0
What is the concentration of chromate??
A solution of K2CrO4 has an absorbance value 0.555 in a cell of 1.00cm path-length at a wavelength of 370nm. The value of the molar absorbtivity is 5.25x103M-1cm-1 for K2CrO4 at the wavelength. What is the concentration of this chromate solution? Report with Three significant figures.
Molar mass of K2CrO4 - 194.2
absorbance value is .555 at a wavelength of 370nm
molar absorbtivity - 5.25*10^3M^-1cm^-1
I would attempted this but I have no clue how to get it to work really hard lol, I don't understand how I can even go about starting this please please help!
Homework Statement
A solution of K2CrO4 has an absorbance value 0.555 in a cell of 1.00cm path-length at a wavelength of 370nm. The value of the molar absorbtivity is 5.25x103M-1cm-1 for K2CrO4 at the wavelength. What is the concentration of this chromate solution? Report with Three significant figures.
Homework Equations
Molar mass of K2CrO4 - 194.2
absorbance value is .555 at a wavelength of 370nm
molar absorbtivity - 5.25*10^3M^-1cm^-1
The Attempt at a Solution
I would attempted this but I have no clue how to get it to work really hard lol, I don't understand how I can even go about starting this please please help!