Explain what is the concentration of sds

Reference no: EM13214150

A simple solvent extraction is used to determine the concentration of SDS (sodium dodecylsulphate) in river water. The student takes 5.0 mL of river water, adds 5.0 mL of reagent, and 5.0 mL of distilled water and extracts the sample into 20 mL of chloroform. The absorbance of the chloroform solution was 0.125. A second 5.0 mL aliquot of river water was taken, 5.0 mL of reagent, and 5.0 mL of 1.0 ppm SDS were mixed and extracted in 20 mL chloroform and the absorbance of the chloroform layer was found to be 0.286. What is the concentration of SDS?

Reference no: EM13214150

Questions Cloud

Explain equation for the reaction of dinitrogen pentoxide : Write the balanced formula unit equation for the reaction of dinitrogen pentoxide, N2O5, with water to form an acid. What is the sum of the coefficients in the balanced equation?

Explain basic salts and not basic salts : Which response gives all of the members of the following list that are basic salts and none that are not basic salts?

Determine the expected return and standard deviation : Determine the expected return and standard deviation of a two-asset portfolio comprised of Swagman and Gaslight shares, Swagman and Airspace shares, and Gaslight and Airspace shares. Assume equal weightings of each share within each portfolio.

What is the spot exchange rate a year from now : The interest rate on one-year Canadian government securities is 6 percent and expected inflation rate for the coming year is 2 percent. The U.S. one-year government security instrument interest rate is 4 percent with expected inflation for this co..

Explain what is the concentration of sds : A second 5.0 mL aliquot of river water was taken, 5.0 mL of reagent, and 5.0 mL of 1.0 ppm SDS were mixed and extracted in 20 mL chloroform and the absorbance of the chloroform layer was found to be 0.286. What is the concentration of SDS?

Determine the sum of all values of function over the range : A probability density function shows the probability for each value of X.The variance of X must be non-negative; the variance of Y must be non-negative; hence the covariance of X and Y must be non-negative _If X is a uniformly distributed random v..

Which exam did ross do better compared to the other students : find out where he stands in both exams. Show your work. Ross scored 80 on a statistics exam whose mean was 70 with standard deviation 5. He scored 85 on an accounting exam whose mean was 80 with standard deviation 8.

Explain what is the sum of the coefficients : Write the balanced formula unit equation for the reaction of hydrobromic acid with magnesium hydroxide. What is the sum of the coefficients?

Find out the ionization constant of the acid : dissolved in water to produce 25.0 mL of a solution with pH = 3.28. Determine the ionization constant of the acid.

User Account

All Pages