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- 1. What is the gravimetric factor of SO3 in BaSO4? 2. What is the normality of an oxidizing agent of a solution of potassium dichromate (K2Cr2O7) containing 8.906 g per 200 mL in the presence of acid? (Cr2O7-2 + 6Fe+3 + 14H+ → 2Cr3+ + 6Fe3+ + 7H2O) NOTE: Present complete solution with corresponding units.HURRY ASAP I WILL RATE NO NEED FOR EXPLANATION WHICH OPTIN Which oxidizing agent do you use to apply the following conversions? HOCH2CH2CH2CH2CH2OH HO2CCH2CH2CH2CO2H KМn04, 0H-,ısı РСС/СН2Сl2 H2, Pt NaBH4 LiAlH47. Consider a1Msolution ofNa3AsO4. Write the charge and mass balance equations for this system. (please type answer not write by hend)
- Which is equivalent to 2,500 ppm Cu2+?Molecular Weight: Cu (63.55) a. 0.07868 N (in precipitation reaction) b. 0.07868 N (in redox into Cu+)The following reaction is not associated with NiMH batteriesA. MH + OH- ⇋ M + H2O + e-B. Ni(OH)2 + OH- ⇋ NiOOH + H2O + e-C. 2H2O + 2e- H2+ 2OH-D. 2H+ + 2e ⇋ H2Hello, I do not understand this quiestion or how to do this problem. Can you help me so I can follow along. 7. 5.00 mL of stock solution is diluted to 25.00 mL, peoducing solution ALPHA. 10.00 mL of solution ALPHA is diluted to 25.00 mL resulting in solutin BETA. 10.00 mL of solutionBETA is then diluted 25.00 mL producing solution Gamma. a. Determine the dilution factor in produciing solution Alpha from the stock solution. b. Determine the dilution factor in producing solution Beta from the solution Alpha c. Determie the dilution factor in producing solution Gamma from the stock solution Beta. d. Determine the overall serial dilution factor in producing solution Gamma form the stock solution.
- You are tasked with creating a pourboix diagram of selenium speciation. The relevent reactions are H2SeO3 <-> HSeO3- , HSeO3- <-> SeO32-, SeO42- <-> H2SeO3, SeO42- <-> HSeO3-, and SeO42- <-> SeO32-. Set and balence the redox reactions needed for this question and explain how you landed on those reactions.(Please give clear handwritten answer) 0.1 M HNO3 solution at 298K was electrolyzed in Hittorf cell using platinum electrodes. After electrolysis, 34.2 mg of copper was deposited in coulometer which in series with the Hittorf cell. 50 mL of HNO3 solution was withdrawn from anode compartment after electrolysis and found to have a concentration of 0.0821 M. [Atomic mass Cu = 63]. (i) Find the transference number of H + and NO3 −. (ii) If 50 mL HNO3 solution was run off from cathode compartment, what would its concentration be?Which of the following are equivalent to 2,500 ppm Cu2+? (There may be more than one answer) MW: Cu (63.55) a) 2.5 ppb Cu2+ b) 2,500,000 ppb Cu c) 2.5 ppt Cu2+ d) 39.34 mM e) 0.03934 M f) 0.07868 N (in precipitation reaction) g) 0.07868 N (in redox into Cu+)
- Which species from below is oxidized? Write the half reaction. Which species from below is reduced? Write the half reaction. 10 grams of Ag in 0.1M Cu(NO3)2 Ag (g) Cu (g) Ag+ Cu2+ Max. Temperature Color Observation 10 g 5.88641e-14 3.70529e-14 0.100000 25o C Blue 10 grams of Cu in 0.1M Cu(NO3)2 Cu (g) Cu2+ Max. Temperature Color Observation 10 g 0.100000 250 C Blue and orange at the bottom of flask 10 grams of Zn in 0.1M Cu(NO3)2 Zn (g) Cu (g) Zn2+ Cu2+ Max. Temperature Color Observation 9.67310 g 0.317730 g 0.100000 Around 0 Around 300 C White/ transparent 10 grams of Pb in 0.1M Cu(NO3)2 Pb (g) Cu (g) Pb2+ Cu2+ Max. Temperature Color Observation 8.96400 g 0.317729 g 0.0999996 3.92983e-7 About 270 C White/ transparent 10 grams of Mg in 0.1M Cu(NO3)2 Mg (g) Cu (g) Mg2+ Cu2+ Max. Temperature Color Observation 9.87850 g 0.317730 g 0.100000…Do the following compounds migrate to the cathode or to the anode on electrophoresis at the specified pH? (Q.) Lys-Gln-Tyr at pH 6.0Which half reaction in the standardization in the experiment will have a normality factor of 1 equivalent/mol? A. Reduction of potassium iodate to potassium iodide B. Oxidation of sodium thiosulfate to sodium tetrathionate C.Reduction of sodium tetrathionate to sodium thiosulfate D.Oxidation of potassium iodide to potassium iodate
