Determine the matrix used to prepare solution of ferricyanide in cyclic voltammetry. Choices: AgCl, KCl, or deionized water

Q: What is hydrometallurgy? Give one example where it is used for metal extraction.

A: The definition of hydrometallurgy with an example has to be discussed,

Q: Explain how EDTA interacts with a metal? Why do we use it as a titrating agent? Why is EDTA a common…

A: Answer- EDTA is a versatile chelating agent. It can form four or six bond with metal ion and it form…

Q: A potassium permanganate solution is prepared by dissolving 4.68 g KMnO4 in water and diluting to…

A: Mass of KMnO4=4.68g  Molar Mass of KMnO4=158.034g/mol  No. of moles of KMnO,n=mass of KMnO4Molar…

Q: What is the normality of an oxidizing agent of a solution of potassium dichromate (K2Cr2O7)…

A: GivenMass of K2Cr2O7 = 8.906 gMolar Mass of  K2Cr2O7 = 294.185 g/moleMoles of  K2Cr2O7 = Mass of…

Q: Using Nernst equation, calculate the temperature of Li+|Li at which the redox couples are in…

A: The equation that relates the standard potential (Eo) with instantaneous potential (E), and the…

Q: A sample of steel was dissolved and the manganese present was converted to MnO4– (aq). Water was…

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Q: A mixture of solid chlorides was known to contain some or all of the following cations: Ag…

A: Out of the given possibility of chlorides of Ag+, Al3+, Cr3+, Ca2+ and Zn2+, only AgCl is not…

Q: Consider the following equation: CuSO4•5H2O + Fe → FeSO4 + Cu + 5H2O. Which substance is oxidized…

A: Loss of electron is oxidation and gain of electron is reduction.Given reaction is redox reaction in…

Q: A sample of steel was dissolved and the manganese present was converted to MnO4– (aq). Water was…

A: Given, Absorbance = 0.560 Path length = 1 cm Molar absorptivity = 3.62*103 L/(mol cm) Concentration…

Q: Why a FGD wet scrubber can remove oxidized mercury, but not much of the elemental mercury?

A: FGD stands for Flue Gas Desulfurization During the combustion of coal in power plants, the amount of…

Q: Cite application of the acid-sulfate solution in plating different metals commonly used in industry.

A: Application of the acid-sulfate solution in plating different metals commonly used in industry -…

Q: A 100.0 mL sample of spring water was treated to convert any iron Fe2+. Addition of 25.00 mL of…

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Q: in the following reactions, indicate which material is being oxidized, which is being reduced, which…

A: The objective of the question is to identify the substances being oxidized and reduced, and the…

Q: Solder is an alloy containing the metals tin and lead. A particular sample of this alloy weighing…

A: Solution -

Q: What role is played by CO2 in getting pure alumina (A1l2O3) in the extraction of aluminium?

A: Extraction of metals: As metals are found in mines in combined state in ores. It is necessary to…

Q: 5 Could a Cu(NO3)2 solution be used instead of CuSO4?

A: Cu(NO3)2 is copper nitrate solution and CuSO4 is copper sulphate solution. Both contains Cu2+ ions.

Q: A sample of steel was dissolved and the manganese present was converted to MnO4– (aq). Water was…

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Q: The oxidation number of platinum in Pt(H2O)4 ^+2 is

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Q: What is the optimum pH for coagulation with Fe2(SO4)3? Briefly explain why.

A: Answer - Coagulation - Coagulation, in physiology, the process by which a blood clot is formed. The…

Q: Describe how you will prepare 1L of 150.0ppm of Cu2+ using Cu metal

A: The 1.0 ppm is equal to 1 mg of Cu2+ ion in 1.0 L of the solution thus,

Q: Permanganate ions and oxalate ions react in a basic solution to produce carbon dioxide and…

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Q: 5. Sol CaC2O4 is obtained by mixing solutions of CaCl2 and Na2C2O4. Write the formula of the Sol…

A: Electrophoresis is the motion of particles relative to a fluid under the influence of a spatially…

Q: Explain the process of standardizing solution of silver nitrate using hydrochloric acid.

A: We need to standardize a solution of silver nitrate using hydrochloric acid. For this, we are…

Q: Out of NH3 and CO2 which gas will be adsorbed more readily on the surface of activated charcoal and…

A: Adsorption: It is the phenomenon in which the adhesion of ions, atoms or molecules from as solid,…

Q: A sample of steel was dissolved and the manganese present was converted to MnO4– (aq). Water was…

A: From Beer-Lamberts law, A = ∈C l where A = absorbance of the substance = 0.560 ∈  = molar…

Q: Ni content of the steel can be determined by the precipitation gravimetric analysis. For this…

A: The complex of Ni forming is Ni(DMG)2

Q: A weighed sample of sodium nitrite was treated with 0.05 mol of ceric sulfate in solution, in…

A: The amount of reactants that react completely to form the product can be identified based on the…

Q: A solution containing 0.40249 g of CoCl2. xH2O was exhaustively electrolyzed to deposit 0.09937 g of…

A: Given: Mass of CoCl2·xH2O = 0.40249 g. And mass of Co formed = 0.09937 g.

Q: The oxidation of 22 mL of a solution containing Fe2+ requires 27 mL of 0.0345 M K2Cr2O7 in acidic…

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Q: Show how to calculate the oxidation number of vanadium after being reduced by So2 according to the…

A: When vanadium is reacted with  SO2  then vanadium  acts as catalysts and It have tendency to change…

Q: This method requires acidic conditions to prevent iron from precipitating out as ferric hydroxide…

A: answer = Volhard method use to prevent iron from precipitating out as ferric hydroxide

Q: The formation constants at 25°C for Fe(CN)64– and Fe(EDTA)2– are 1.00x1037 and 2.10x1014,…

A: We have Fe^2+(aq) + 6CN^- (aq) => Fe(CN)64-(aq) Kf = 1.00*10^37 Fe^2+(aq) + EDTA^4-(aq) =>…

Q: Explain reaction between SAE 304 stainless steel and isopropanol and why it may cause rust?

A: The most popular stainless steel is SAE Stainless Steel 304. It consists of  two primary non-iron…

Q: The amount of iron in a meteorite is determined by a redox titration using KMnO4 as the titrant. A…

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