An acidic solution of copper (.35 M Cu+2) was treated with KOH until Cu(OH)2 precipitated. At what pH does this occur at?

Q: When a solution of potassium chromate, K,Cro, (aq) is added to a solution of silver nitrate, AgNO,…

A: A precipitation reaction is the reaction in which an insoluble salt is formed when two solutions…

Q: Metal ions in aqueous solutions are solvated, or hydrated, by water molecules. Typically this…

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Q: 9. What volume of a silver nitrate solution that contains 10.98 g of primary standard AgNO; in 1.00…

A: Mass of AgNO3 = 10.98 g Volume of primary standard AgNO3 = 1.0 L Mass of Na2CrO4 =  0.259 g

Q: Term used to indicate the determination of a metal inthe presence of another metal Substance whose…

A: To determine a metal in presence of more than one metal ions ,one has to mask that all metal to…

Q: You have 10mL of an 8% aqueous solution of H2Cl6Pt.(a) Calculate the platinum in this solution as…

A: The molarity of a solution is the ratio between the mass of the compound to the volume of the…

Q: Calculate the molar concentration of cadmium(II) ion in equilibrium with solid Cd(OH)2 at pH =…

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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: Write a chemical equation for the reaction of CoCl2 times 6H2O with K3PO4. A solid white precipitate…

A: A chemical equation for the reaction of CoCl2 . 6H2O with K3PO4 is written as follows,

Q: Which of the following salts does NOT cause permanent hardness? (A Ca(HCO,). (B M8SO , © CaCl, (D…

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Q: Please write the reactions of Zn, Fe and Cu metals with HCl and H2SO4 acids.

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Q: What is the minimum pH at which Cd(OH)2(s) will precipitate from a solution that is 0.0055M in…

A: Solubility product   In case of a sparingly soluble salt,  the solubility of salts are very less.…

Q: Which of the following salts does NOT cause permanent hardness? A Ca(HCO,), 2. B M8SO , © FeCl, D…

A: Ans : C ( Hard water is the water that contains soluble salts of bivalent ions like calcium and…

Q: Potassium Ferrioxalate is mixed with in 50 mL of 1 M H2SO4 In a beaker , it is then placed one-half…

A: The chemical effects of light are studied in photochemistry, which is a branch of chemistry. In…

Q: The generic metal A forms an insoluble salt AB(s) and a complex AC5(aq). = 0.100 M, [C] = 0.0340 M,…

A: a) Given: The equilibrium concentrations of species are, => [A] = 0.100 M                  [C] =…

Q: Formation of a red color upon addition of KSCN confirms the presence of which metal: aluminum,…

A: Formation of a red color upon addition of KSCN confirms the presence of iron metal.

Q: Which of the following salts does NOT cause permanent hardness? A FeCl, B CaCl, © Ca(HCO,), (НСО ,),…

A: The temporary hardness is to the presence of carbonates and bicarbonates of calcium and magnesium in…

Q: Calculate the molar solubility of Ca(OH)2 (Ksp = 5.02 x 10) in %3D solution that is buffered at pH=…

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Q: Calculate the solubility of the slightly soluble salts of Cr(OH)2 and Cr(OH)3. What would you…

A: The question is based on the concept of solubility product Principle.   it states that a weak…

Q: 1. 0.4960 g sample of CaCO3 (mw= 100) is dissolved in an acidic solution. The calcium is…

A: "Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: The sulphide ore among the following is(a) haematite(b) bauxite(c) argentite(d) zinc blende

A: Minerals are the natural materials in which the metals and their compounds are found in earth. Ores…

Q: platinum in this solution as well as b) the molar concentration of the platinum in this solution.…

A: volume by volume percentage of the solution is the way to quantify the amount of the solute present…

Q: Can you compare the solubility of Co2 in water compared with saturated NaCl solution?

A: solubility of Co2 in NaCl solution is less than in water increases with the temperature and…

Q: Describe the principle controlling each of the following processes :(i) Vapour phase refining of…

A: Vapour phase refining method: It is refining process in which metallic ore is converted into its…

Q: Calculate the concentration of PO43− when Ag3PO4 starts to precipitate from a solution that is…

A: The solubility product of salt is a constant at a given temperature irrespective of the source from…

Q: Define the following terms; Selective Precipitation: Quantitative Analysis: ii) Which metals is…

A: (i) Selective precipitation is defined as the process used for the separation of ions in the…

Q: Which of the following is the source of common salt?   A.  BauxiteB.  PyriteC.  CalciteD.  Halite

A: Common salt is Sodium chloride.  It is also known as table salt or rock salt.  NaCl is the chemical…

Q: State the principle on which each of the following processes operates: (i) Recovery of silver after…

A: To eliminate pollutants from the metals the way toward refining is finished. The extensively…

Q: The reaction 2A(g) ⇌ B(g) is found to have Kp = 24.5. What would the equilibrium constant be for…

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Q: Which of the following salts does NOT cause permanent hardness? A MGSO, B CaCl, B Ca (HCO ,) , D…

A: Water have two types of hardness 1. Temporary hardness 2 Permanent Hardness

Q: Why does not silver evolve hydrogen on reacting with dil H2SO4

A: Silver is less reactive than hydrogen and so placed below hydrogen in the reactivity series. Metals…

Q: 2. For each of the following pairs, identify a reagent that will dissolve one substance but not the…

A: I) HgS does not dissolve in (NH4)2S, hence produces a black ppt of HgS. However As2S3 dissolves in…

Q: Calculate the formation constant K; for Ag(CN),: Ag* + 2CN = Ag(CN), if the cell SCE|| Ag(CN), (7.50…

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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: Describe the principle behind each of the following processes: (i) Vapour phase refining of a metal.…

A: To eliminate pollutants from the metals the way toward refining is finished. The extensively…

Q: The generic metal A forms an insoluble salt AB(s) and a complex AC5(aq). The equilibrium…

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Q: Write the chemical equation for the disproportionation of Cr(OH)3Cr(OH)3 in basic solution.…

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Q: 4. A 0.010 M solution of AgNO3 is made 0.50 M in NH3 and Ag(NH3)2 complex forms Ag(NH3)2*(aq) Kf =…

A: The balanced chemical equation is given below.

Q: In iron smelting, what are the possible chemical equations that will involve CaO if CaO is part of…

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Q: Write the complete chemical equation of leaching Cuo in acidic solution which produces Cu²* ions.…

A: Leaching CuO in acidic solution which produces Cu2+ ions. We have to write the complete chemical…

Q: In the iron (II)-silver ion system performed in the experiment, all of the following successfully…

A: Here we have to predict the test given which doesn't not occur when the system contains Fe^+2 and…

Q: If a sample of silver coin weighing 0.2500 g gives a ppt of AgCl weighing 0.2991 g. What wt. of Agl…

A: Since moles = mass / molar mass And molar mass of AgCl = Atomic mass of Ag + Atomic mass of Cl = 108…

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: 1. Write the equations of the reactions. Write the electron balance and put the coefficients and…

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

A: The ratio of mass of solute to the mass of solution multiply by 100 is known as %w/w.