Mixtures of metal ions in aqueous solution can sometimes be separated by selective precipitation. What is selective precipitation? If a solution contained 0.10 M Mg 2+ , 0.10 M Ca 2+ , and 0. 10 M Ba 2+ , how could addition of NaF be used to separate the cations out of solution—that is, what would precipitate first, then second, then third? How could addition of K 3 PO 4 be used to separate out the cations in a solution that is 1.0 M Ag + , 1.0 M Pb 2+ , and 1.0 M Sr 2+ ?
Mixtures of metal ions in aqueous solution can sometimes be separated by selective precipitation. What is selective precipitation? If a solution contained 0.10 M Mg 2+ , 0.10 M Ca 2+ , and 0. 10 M Ba 2+ , how could addition of NaF be used to separate the cations out of solution—that is, what would precipitate first, then second, then third? How could addition of K 3 PO 4 be used to separate out the cations in a solution that is 1.0 M Ag + , 1.0 M Pb 2+ , and 1.0 M Sr 2+ ?
Solution Summary: The author explains that selective precipitation is used to separate the cations from the solution using a reagent.
Mixtures of metal ions in aqueous solution can sometimes be separated by selective precipitation. What is selective precipitation? If a solution contained 0.10 M Mg2+, 0.10 M Ca2+, and 0. 10 M Ba2+, how could addition of NaF be used to separate the cations out of solution—that is, what would precipitate first, then second, then third? How could addition of K3PO4 be used to separate out the cations in a solution that is 1.0 M Ag+, 1.0 M Pb2+, and 1.0 M Sr2+?
please solve. If the answer is "no error" and it asks me to type something, and i typed a-helix, its always wrong.
Can you please solve and explain this for me in a simple way? I cant seem to comprehend this problem.
Part I. Problem solving. Include all necessary calculations 13 provide plots and graphs.
Complexation wl diphenyl carbazide (OPC) in acidic media is another type of sensitive photometric method used for the analysis of aqueous.
hexavalent chromium. At 540nm the cherry-red complex as a result of DPC reaction w/ chromium can be photometrically measured.
at this wavelength.
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a 25mL
The UV-vis analysis for the determination of nexavalent chromium in ground water sample is given below. The experiment was based
on external calibration method w/ each measurement sample prepared are as follows
lab sample analysis contained the standard
100 ppb croy cor groundwater sample, volumes used as indicated below), 12.50 mL of 0.02 M H2Soy and 5.50 ml of 100 ppm DPC (wi
water to adjust final volume to 25-ml). The main stripping method was square wave voltammetry, following the conditions set
in the main ASV experiment.
Standard 100
Volumetric
Groundwater
H2SO4 0.20 M,
flask
Sample, mL
ppb CrO4*,
100…
Chapter 16 Solutions
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell