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Write a flow chart for the separation and identification of Ag+, Bi3+, and Ni2+
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- Assess the validity of each statement and choose X if the statement is CORRECT, Choose Y if otherwise. 10. Potentiometric methods can be used for end-point detection in EDTA titration of metal ions for which ion electrodes are available 11. Back titrations are useful for determining cations that are able to form stable EDTA complexes. 12. Nitriloacetic acid is an aminopolycarboxylic acid. 13. A ligand that has a single donor group is unidentate such as glycine. 14. Ammonia is a bidentate ligand. 15. The term chelate is derived from a Greek word meaning, toothlike projectionsA weak acid, HA, has a pKa of 6.5. If you are utilizing ion-exchange chromatography with an anion exchange resin, what pH range is beneficial to the binding to the stationary phase? And Why?The absorbance value for the Standard was 0.625 and [FeSCN^ 2+ ] std is 2.00E 4M Calculate the [FeSCN^ 2+ ] in the equilibrium mixture, report the answer to the correct significant figures. The absorbance of the equilibrium solution was 0.451
- create a qulaitative analysis separations flow chart for the separation of Zn2+, Al3+, Fe3+Create a separations flowchart for qualitative analysis for the following Sb3+ Fe3+ Zn2+ Al3+ Cd2+The standard curve was made by spectrophotographic analysis of equilibrated iron(III) thiocyanate solutions of known concentration. You are asked to analyze a Fe(SCN)2+Fe(SCN)2+ solution with an unknown concentration and an absorbance value of 0.4150.415 . The slope-intercept form of the equation of the line is ?=4558.4?+0.0147y=4558.4x+0.0147 . The unknown was analyzed on the same instrument as the standard curve solutions at the same temperature. What is the Fe3+Fe3+ concentration of the unknown solution?
- What weight of sample must be taken so that each 50 mg BaCl2 obtained in a gravimetric silver determination shall correspond to 10% of the Cl in the original sample? BaCl2 (208.23) Cl (35.45)A 5.00 mL tap water sample was measured out with a volumetric pipette, and added to a 25 mL Erlenmeyer flask. It was then titrated with a 0.0100 M Na2EDTA.2H2O solution, and found to take 0.635 mL of the EDTA solution to reach the blue endpoint.Determine the concentration of [Fe(SCN)2+_std] if the standard solution was made using 18 mL of 0.2M Fe(NO3)3 and 2 mL of 0.002 M KSCN and has an absorbance of 0.921.