A student wanted to determine the level of lead in amoxicillin powder, so he transferred 148 mg of the powder to 200 ml volumetric flask and completed the volume volumetrically, then he transferred 5 ml of the obtained solution to 50 ml volumetric flask and completed the volume properly, and read the absorbance of the obtained solution on AAS. The reading was 0.48. and the calibration equation was: "Y =12.25 x- 0.05" (concentration microg./mL). Calculate the content of lead in amoxicillin as "ppm"? O a. 326.5 b. 605.0

A student wanted to determine the level of lead in amoxicillin powder, so he transferred 148 mg of the powder to 200 ml volumetric flask and completed the volume volumetrically, then he transferred 5 ml of the obtained solution to 50 ml volumetric flask and completed the volume properly, and read the absorbance of the obtained solution on AAS. The reading was 0.48. and the calibration equation was: "Y =12.25 x- 0.05" (concentration microg./mL). Calculate the content of lead in amoxicillin as "ppm"? O a. 326.5 b. 605.0

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.30QAP

See similar textbooks

Similar questions

How many milligrams of solid MgCl2 (Formula Weight: 95.211 g/mole) are required toprepare 250mL of a 150mM solution?
How many grams of C10H14N2Na2O8∙2H2O (Disodium salt of EDTA) should be weighedout to prepare 250 mL of a 0.100 M solution?
What volume of water should be added to 100.0 mL of a 0.500 N Cr2(SO4)3·18H2O solution to obtain a final concentration of 0.075 M? Show step-by-step solution.
What volume of a 0.186 molL−1 Na3PO4 solution is necessary to completely react with 91.9 mL of 0.103 molL−1 CuCl2?v
What volume of Water for Injection, BP is to be added to a vial containing 500 mg amoxicillin to produce a solution with a volume of 10 mL. The displacement volume of amoxicillin is 0.5ml for 125mg.
An aqueous stock sodium bromide solution is prepared by adding 32.1gNaBr to a 50.0mL volumetric flask and filling to the mark with water. How would you prepare 100mL of 0.005MNaBr from this stock solution?
The Henry’s law constant (kH) for O₂ in water at 20°C is 1.28X10⁻³mol/Latm. (a) How many grams of O₂ will dissolvein 2.50 L of H₂O that is in contact with pure O₂ at 1.00 atm? (b) How many grams of O₂ will dissolve in 2.50 L of H₂O that isin contact with air, where the partial pressure of O₂ is 0.209 atm?
How many ml of a sodium hydroxide solution with a concentration of 40g/100cm3 should be measured out to prepare 200cm3 of 0.5M solution?
Describe the solution's preparation: i) 250 mL of 0.0750 M AgNO3 from the solidreagent ii) 500 mL of 4.75 % (w/v) aqueous ethanol iii) 250 mL solution of 25 ppm of Na+ from solid sodium sulfate (Na2SO4)
100 cm3 0.1 M NaH2PO4 solution is mixed with 150 cm3 0.2 M H3PO4 solution. What are the totalconcentrations of Na+, H+ and PO3−4in the mixed solution?
9. How you would prepare a 1:25 dilution (v/v) of the solution prepared above?
How many moles of solute particles are present in 1.64 mL of 0.458 M K2SO4? (the answer is 2.25E-3 but i would appreciate some insight on what steps to take!)