What is the oxidation state of the metal in the dioxide of Rh, Ir, Pd, and Pt? Express your answer as an integer (e.g., +1 or -3).

Q: What are the oxidation states of manganese in the following series of oxides? MnO, MnO2, Mn2O3,…

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Q: The amount of Fe in a 0.4891-g sample of an ore is determined by titrating with K2Cr207. After…

A: A titrant is the substance that is added during a titration, and whose concentration is precisely…

Q: What mass in grams of Na2S2O3 is needed to dissolve 6.3 g of AgBr in a 1.0 L solution if Ksp for…

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Q: 1. Balance the following reaction: Cr + O2 -> CrO3

A: Cr + O2 -> CrO3         after the balancing this equation :

Q: Write a balanced chemical equation for the reaction of [Co(H, 0),J²+ with Cl¯. Be sure to include…

A: Here, we have to write the balanced chemical equation between [Co(H2O)6]2+ and Cl-.

Q: Enter electrons as e". Use smallest possible integer coefficients. If a box is not needed, leave it…

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Q: Assume that there are 58.00 g of C2O4-2 and 12.27 g of iron in a 100 g sample of your unknown. What…

A: Mass of the whole sample is 100g. It contains oxalate, water and iron with it. The mass of iron and…

Q: The Kf (complex formation constant) of [Ag(en)₂*] > is 5.0x107. The standard reduction potential E°…

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Q: 1) Balance the following reaction for acidic and then basic conditions. VO2+ + Zn --> VO2+ + Zn2+

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Q: How long(in hours) would be required for the electroplating of 78g of platinum from a solution of…

A: Mass of platinum required for electroplating = 78 g  Molar mass of platinum = 195.08 g/mol  Number…

Q: Why is [Fe(OH2))6]%+ prepared in an acidic solution? 13+ A. It is a Bronsted acid in aqueous…

A: We have to explain that why Fe3+(aq) solution is prepared  in acidic  medium and we have to select…

Q: Arrange the following in increasing oxidation number for Chromium: Cr3+ ; Cr metal ; Cr2O7-2

A: Cr metal ( lowest ) < Cr3+ < Cr2O72- ( highest )

Q: A sample of pyrolusite weighing 0.6000 g is dissolved in a solution containing 5.00 mL of 6.00 N…

A: The oxidising power can be determined by the moles of electrons consumed in the reaction as…

Q: Consider the compound: bis(ethylenediamine)-cis-dinitratroiron(X) cation. Where X is the appropriate…

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Q: How many unpaired electrons is [VO(H2O);]* (aq) expected to have? How could you prove this…

A: The structure of the given complex is represented as follows:

Q: Pb(NO3)2 + Ni(en)1(H20)4SO4 ------> Pb(SO4)(s) + 2NO31- + Ni2+ + 4H2O + 1 en b. How many grams of…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: 6. A mixture contains at least one of the ions in the silver group (Ag*, Hg²*, Pb²*). Read the…

A: The qualitative analysis of the metal ions involves the identification of metal ions that are…

Q: What is the oxidation state of iron in the following compound Ka[F (CN)&J? +2 +3 +1

A: K3[Fe(CN)6]

Q: What is the pH of a 0.05 M solution of CdSO4 if the KA value for [Cd(H2O)n] 2+ is 3x10-9 ? b. Write…

A: To calculate the PH, first step is to calculate Pka

Q: Assign oxidation states to the transition-metal ions in the following compounds: TiO2, ZrCl4, VCl3,…

A: Oxidation state indicates the degree of oxidation for an atom in a chemical compound; it is the…

Q: 3. For the substitution of [Mn(OH2)oJ** to form [MnX(OH2)s]*, what experiments could you design to…

A: PLease fine the answer given below:

Q: A 0.8040 g sample of an iron ore is dissolved in acid. The iron is then reduced to Fe²+ and titrated…

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Q: A pure oxide of iron weighing 1.000 g is fused with K2S2O7 and the fused material dissolved in acid.…

A: Solution -

Q: What is the oxidation state of an individual sulfur atom in MgSO4? Express the oxidation state…

A: The objective of this question is to determine the oxidation state of sulfur in the compound…

Q: 2. The dichromate ion oxidized iodide to iodine in acidic solution. Balance the equation by the…

A: oxidation is the process in which oxidation number increases.  Reduction is the process in which the…

Q: Draw the molecular orbital diagram for [Ti(H;O)c]³* with the electrons filled in the orbitals.…

A: As H2O is strong sigma Donar legand . According to MOT Metal and legand have co ordinate covalent…

Q: Give 5 Examples of Ligands and show how to bind to a metal?

A: The atom or ion or molecule which donates pair of electrons to central metal atom or ion is called…

Q: Use the data provided for stock concentration and mass to calculate the concentrations of each…

A: The dilution law is shown below: M1V1 = M2V2 Where; M1 = morality of known solution V1 = volume of…

Q: A sample of pyrolusite weighing 0.6000 g is dissolved in a solution containing 5.00 mL of 6.00 N…

A: Given that 1 mL of KMnO4 oxidise 0.03058 g of FeSO4.7H2O…

Q: Rank the metals as less active < More active (Increasing order). Compound DeltaG0f (kJ/mol) NiO -212…

A: Given: The Formation Gibbs free energy of the oxides of the metals are NiO (-212) MgO (-569) CuO…

Q: The amount of Fe in a 0.4891-g sample of an ore is determined by titrating with K2Cr207. After…

A: Indicator is the chemical substance that adds to the analyte solution to know the end point…

Q: Discuss the preference of Ni(II) for sulfide and oxide as ligands

A: Interpretation- To discuss the peference of Ni(II) for sulfide and oxide as ligands.…

Refining of Crude Metal

Metallurgy could be defined as a technique by which metals can be extracted in their pure nature. Extractive metallurgy directs with the route of eradicating the valuable metals from ores and purifying the extracted metals to pure nature. In hydrometallurgy, the metal extraction’s from their ores is done using an aqueous solution. In the pyrometallurgical process, high temperatures are employed to initiate the reactions between gases, molten metals, and solids. In electrometallurgy, the technique is carried in an electrolytic cell.