Under what conditions is the FeO42- ion thermodynamically stable in aqueous solution?

Q: Zinc is used but not copper for the recovery of metallic silver from the complex [Ag(CN)2 ]-,…

A: The reason why  Zinc is used but not copper for the recovery of metallic silver from the complex…

Q: give the cause of lanthanide contraction.

A: The long form of the periodic table is a tabular arrangement of all known elements. Here the…

Q: estimate the fraction of electrons above fermi level in sodium and copper at room temperature

A:

Q: Why do Selenium and tellurium occur in rare minerals?

A: The reason why Selenium and tellurium occur in rare minerals has to be given,

Q: Is bis(oxalato)platinate(II) a diamagnetic square planar complex? Yes or no? How about at the start…

A:

Q: Complete and balance the following equations, and identify the oxidizing and reducing agents: MnO4…

A: Redox reaction- the reaction in which oxidation and reduction takes place simultaneously called as…

Q: What is the oxidation number of X in the X2O72– ion?

A: Given compound : X2O72-  Charge on O = -2  Let x is the oxidation number of X  This compound has -2…

Q: The following Latimer potential diagram shows bromine species under acidic conditions a) Identify…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: (d) [Cr(OH)2]¿** ions are pale blue-green but chromate (Cr,0,) ion is an intense yellow in colour.…

A:

Q: 7) Calcium metal is obtained by direct electrolysis of molten CaCl2. If a metallurgical electrolysis…

A: Ca2+ + 2e- => Ca.  This shows that 2 mole of electrons is needed for one mole of calcium.  1 mole…

Q: Two lasers generate radiation of (1) 9.5 µm and (2) 0.1 µm respectively. (a) For each of the…

A: a. Energy of a radiation is relation to energy as: E=hcλ where, h = Planck's constant = 6.626×10-34…

Q: The reduction potential of permanganate ion (+7 oxidation state) in acidic aqueous solution is given…

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Q: What are the structural characteristics of a chelating agent

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Q: Is the interaction between an ammonia ligand and a metal cation a Lewis acid-base interaction?

A: The interaction between ammonia ligand and a metal cation is a Lewis acid-base interaction.

Q: Titanium (IV) exists in aqueous solution but not as the Ti4+(aq) ion. Suggest the identity of the…

A: Titanium exhibits +2, +3 and +4 oxidation states. It is extracted from an ore which consist of…

Q: Which alkali metal has maximum ionic mobility in aqueous solution?

A: Alkali metals exits as hydrated ions in aqueous solution.As the size of the metal ions increases,…

Q: How many grams of silver metal are produced from Ag*(aq) in 1.95 h with a current of 3.50 A? (F =…

A: Given that: Time = 1.95 h = 7020 seconds Current = 3.50 A Mass of silver = ?

Q: Write the role of the following: (i) CO in the purification of nickel (ii) Graphite rod in the…

A: The Mond’s process is used for the purification of nickel. This process is also called as carbonyl…

Q: How many grams of rhodium (Rh) can be deposited on a ring used as a cathode by electrolysis of a…

A: Rh3+  + 3e-   -----> Rh Equivalent mass of Rh , E = M/n.f = 103/3 g/eq = 34.33 g/eq Z = E/F =…

Q: Predict the reaction of Cr2+, Fe2+, Cl-, HClO, Zn(s) when blowing air into an acidic aqueous…

A:

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: 3+ (d) [Cr(OH)2]6* ions are pale blue-green but chromate (Cr,O,) ion is an intense yellow in colour.…

A:

Q: Explain the action of TiO2 as a photocalyst during wastewater treatment

A: Wastewater is majorly polluted by the organic textile dye,directly being released into the water…

Q: Explain the terms of the Nernst equation.

A: The relation between electrical and chemical change is studied under electrochemistry. Two types of…

Q: How many grams of silver metal are produced from Ag*(aq) in 2.90 h with a current of 3.50 A? (F =…

A:

Q: What is the pH of a 0.237 solution of sodium hypobromite (NaOBr)? The Ka of hypobromous acid is 2.24…

A: Ka for HBrO , Ka = 2.24 × 10-9  Kb = 10-14 / 2.24 × 10-9 = 4.46 × 10-6  NaOBr ---> Na+ + OBr-

Q: A synchrotron is an extremely powerful source of X-rays. The X-rays also can be geerated by…

A: Synchroton is powerful Source for generating xray.Xray are produced by high energy electron.

Q: Using data from Appendix E, calculate the equilibrium constant for the disproportionation of the…

A: Cu+(aq) -----------------> Cu2+ (aq) + e-            E0 = -0.15v Cu+ (aq)+ e- --------------->…

Q: How many unpaired electrons are there in the low-spin state of Co2+ in an tetrahedral field?

A: In any "coordination complex" electrons get filled depending upon ligand nature. If "strong ligand"…

Q: In chemistry, what does it mean when the ratio of the overall Fe in Fe2O3 and Fe3O4 is unity?

A: we are required to find % of Fe in both iron oxide and then compare the % of Fe

Q: Calculate the electric charge (in Coulombs) required to deposit 13.5 grams of Al from Al3+ ions.

A: Given,  Mass of Al = 13.5 g  Calculate electrical charge (in Coulombs) required to deposit 13.5 g of…

Q: Which alkali metal ion has maximum ionic mobility in aqueous solution?

A: The capability of ions to move upon the effect of electric field through a medium is termed as ionic…

Q: Which is more acidic and why?  [Fe(H2O)6]2+ or [Fe(NH3)(H2O)5]2+

A: Acidity: It basically describes the how much amount of acid present in given compound. Acid: Species…

Q: Calculate the nominal concentration of each of the ions in the following minerals in aqueous…

A: The dissociation of Phosgenite (PbCl)2CO3 is shown as,

Q: In what directions do you expect the bond length andvibrational frequency of a free CO molecule to…

A: Interpretation - In what directions the bond length and vibrational frequency of a free CO molecule…

Q: Comment on whether F2 will become a stronger oxidizing agent with increasing H* concentration.

A: The oxidizing ability of any substantial changes with respect to its state i.e. whether it is in…

Q: Verify the structures of paramagnetic [Fe(H2O)6]²* and diamagnetic [Ni(CN)4]² by using Crystal Field…

A: [Fe(H2O)6]2+ = In the given complex, the oxidation state of Fe is +2. Hence, the electronic…

Q: For the coordination compound [Pd(CN)2(en)2][PtCl4]: How many unpaired d electrons are present in…

A: Solution:  We know that for any d block elements, the number of unpaired electron are calculated…

Q: What is the oxidation state of Fe in the molecule Fe203?

A: The sum of oxidation states of individual species is equal to the charge on the species.  Let the…

Q: What is the process of making chlorine from the electrolysis of sodium chloride called? chlor-alkali…

A: (1) When sodium chloride is electrolysed , then sodium chloride decomposed with water to give sodium…

Q: How many unpaired electrons are there in the high-spin state of Co2+ in an tetrahedral field?

A: Electronic configuration of Co is [Ar] 3d7 4s2 Thus, electronic configuration of Co2+ is [Ar] 3d7

Q: isomerisation

A: Dear student I have given answer to your question in the image format.

Q: Aside from EDTA, enumerate (5) important chelating agents in the field of Medical Technology.

A: Chelating agents:  Chelating agents are molecules that have the ability to form more than one bond…

Q: Which is the least reactive alkali metal? Why is this not expected based on standard oxidation…

A: The tendency of a metal to lose electron easily is the basis for reactivity of metal atoms.