Please show as much work as possible! I have no clue on how to even begin solvin

Question

Please show as much work as possible! I have no clue on how to even begin solving this. Thank you in advance!

Atomic absorption spectrometry was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream. For the addition, 10.0 ?L of a 1000.0 ?g/mL Cd standard was added to 10.0 mL of solution.

The following data were obtained:

Absorbance of reagent blank = 0.020

Absorbance of sample = 0.481

Absorbance of sample plus addition = 0.805

What was the concentration of the cadmium in the waste stream sample? (answer in ?g/mL)

Later, the analyst learned that the blank was not truly a reagent blank, but water. The absorbance of the actual reagent blank, was 0.048. Calculate the cadmium concentration using the new information of the blank. (answer in ?g/mL)

Calculate the percent error caused by using water instead of the reagent blank.

Explanation / Answer

30%

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.