Question

What is the concentration of a solution with an absorbance of 0.591

What is the concentration of a solution with an absorbance of 0.591

Homework Answers

Answer #1

Beer-Lambert law

A = c l

Here

A = Absorbance, (given in question = 0.591)

c = concentration of the solution, expressed in mol/L (? = have to calculate)

= absorption coefficient of the absorbing medium, expressed in(mol/L)-1 cm-1.

(It is charecteristic of the solute and depends upon the nature of the solvent, temperature and the wavelength of the radiation employed.

l = path length, expressed in cm

Without knowing and l, its not possible to calculate the concentration.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
If a 0.135 M solution of CO2+ has an absorbance of 0.350, what is the concentration...
If a 0.135 M solution of CO2+ has an absorbance of 0.350, what is the concentration of a solution with an absorbance of 0.435
The absorbance of a chemical solution is 0.5 at 400 nm. The concentration of the solution...
The absorbance of a chemical solution is 0.5 at 400 nm. The concentration of the solution is 50 mM. The pathlength of the cuvette is 1 cm. What is the molar absorptivity of the chemical at this wavelength?
During the spectrophotometric analysis of an unknown, the absorbance of a solution of unknown concentration is...
During the spectrophotometric analysis of an unknown, the absorbance of a solution of unknown concentration is measured, and the value is higher than the highest standard used to make the standard curve. What should be done to make sure that the standard curve can be used to determine the concentration of the unknown? A) Dilute the unknown so that it will have an absorbance within the standard curve. Once the diluted unknown concentration is determined, the full strength concentration can...
Is there a mathematical relationship between absorbance and concentration of the solution? If so, indicate the...
Is there a mathematical relationship between absorbance and concentration of the solution? If so, indicate the relationship.
Calculate the molar concentration of a solution that has a measured absorbance of 0.635 using a...
Calculate the molar concentration of a solution that has a measured absorbance of 0.635 using a 1-cm pathlength cuvette and an extinction coefficient of 46,000.0 M-1cm-1.
1) If the absorbance of solution 1 at equilibrium is 0.23 and the absorbance of the...
1) If the absorbance of solution 1 at equilibrium is 0.23 and the absorbance of the standard solution is 1.23, and the concentration of FeSCN2+ in the standard solution is 1.00 M, what is the equilibrium concentration of FeSCN2+ in solution 1? (Show your work, 3 sig figs, and correct units) 2) If the initial concentration of Fe3+ in solution 1 was 0.25 M, what is the equilibrium concentration of Fe3+ that remains? (Show your work, 3 sig figs, and...
1. The absorbance of a solution at 590 nm is 3.5. What color will the solution...
1. The absorbance of a solution at 590 nm is 3.5. What color will the solution have to your eyes? What must you do before you can accurately determine its absorbance? (5 points) 2. Solid ATP is very hygroscopic – that is, the powder picks up water from the air. With time, the powder will no longer be pure ATP – how would this affect your accuracy if you were trying to make an exact concentration of ATP using only...
If you have an initial absorbance (concentration) of 0.4 and you want 8mL of final chloroplast...
If you have an initial absorbance (concentration) of 0.4 and you want 8mL of final chloroplast solution with a final absorbance (concentration) of 0.1, how many mL of the 0.4 solution needs to be part of the final 8mL of solution? HINT: Use this equation - CiVi = CfVf
The absorbance of a cationic iron(II) sample solution was measured in a spectrophotometer, but the instrument...
The absorbance of a cationic iron(II) sample solution was measured in a spectrophotometer, but the instrument returned an error because the absorbance was too high. The sample was then diluted by using a pipette to take 100.0 μL of the sample and injecting it into a cuvette already containing 2.00 mL of water (total volume is 2.00 mL + 100.0 μL). The absorbance value of the diluted solution corresponded to a concentration of 8.21×10−6 M . What was the concentration...
The absorbance of a 0.18 M colored solution was measured with red light and found to...
The absorbance of a 0.18 M colored solution was measured with red light and found to be 0.281. If the same curvette was cleaned, used, and dried what would you predict the absorbance to be for each of the following solution concentration? a. 0.27 M solution b. 0.36 M solution c. 0.90 M solution
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT