what wt. of limestone containing 9.57% Mg must be taken for analysis in order to precipitate of 0.551g Mg2P2O7?

Q: To study the effects of a weakly acidic medium on the rate of corrosion of a metal alloy, a student…

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Q: Compare the solubility of ferrihydrite (Fe(OH)3) and goethite (FeOOH), with dissolution reactions…

A: Ferrihydrite (Fe(OH)3): Fe(OH)3 + 3 H+ →Fe3+ + 3 OH- + 3 H+Let s1 be the solubility of…

Q: Calculate the pH of the cathode compartment for the following reaction given Ecell -3.01 V when…

A: Given reaction is :  2Al (s) + Cr2O72- (aq) + 14H+ (aq) ------> 2Al3+ (aq) + 2Cr3+ (aq) + 7H2O…

Q: A sample of steel weighing 2.00 g is analyzed for Cr (AW 52.0). The Cr is oxidized into chromate…

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Q: A 0.9352g sample of ore containing Fe³+, Al³+ and Sr²+ was dissolved and made up to 500.00 mL. The…

A: A numerical problem based on concentration terms that is to be accomplished.

Q: snip

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Q: An acidic solution of copper (.35 M Cu+2) was treated with KOH until Cu(OH)2 precipitated. At what…

A: Given : Concentration of Cu2+ = 0.35 M Using appendix, the solubility product of Cu(OH)2 is 1.6 X…

Q: A sample of steel weighing 2.00 g is analyzed for Cr (AW 52.0). The Cr is oxidized into chromate…

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Q: A solution of sodium thiosulfate was standardized by dissolving 0.1310 g KIO3 in water, adding a…

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Q: Balance the redox reaction between acidified potassium tetraoxomanganate and iron (ii)…

A: Balance the redox reaction between acidified potassium tetraoxomanganate and iron (ii)…

Q: 1. Complete and/or balance the following chemical weathering or redox reactions (show all steps): a.…

A: “Since you have posted multiple questions with multiple sub parts, we will provide the solution only…

Q: A sample consisting of a mixture of Na₂SO3 and inert matter weighs 1.468 g and is added to 100.0 ml…

A: A question based on mole concept that is to be accomplished.

Q: the Figure below.

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Q: What is the percentage of Nickel in an ore if, when analyzed by the cyanide method, 20.00mL of KCN…

A: To find the percentage of nickel in the ore using the cyanide method, use the reaction between…

Q: When the high-temperature superconductor yttrium barium copper oxide is heated under flowing H,, the…

A: A superconductor is a substance that conducts electricity without resistance when it becomes colder…

Q: A series of reactions is carried out on the alloy (A) formed of two metals, as in the following…

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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: lire chemical formulas and dimensional analysis to express the ratio for the calculation of the…

A: H2NNH2 + 2I2 = N2 + 4I- + 4H+…

Q: why does enrgy have to be supplied to a chemical in order to break the IMFs between the molecules in…

A: In any chemical reaction reactants are converted into products.

Q: Express the equilibrium constant for the following reaction: 2 CH2CI2 (g) + Cl2 (g) =2 CHCI3 + H2…

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Q: An impure sample of Na3PO3 weighing 0.1392 g was dissolved in 25 mL of water. A solution containing…

A: Given, mass of impure sample of Na3PO3=0.1392 g Volume of water = 25 mL

Q: The sulfur from 4.00g steel is evolved as dihydrogen sulfide gas and titrated with 1.60 mL of…

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Q: Previous records had shown that to prevent acute toxicity to organisms, the maximum mass of CdSO4…

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Q: A 1.9300 g impure sample of Fe(NH4)2(SO4)2 (FW = 392.14) was dissolved in 75 mL 0.75 M H2SO4 and was…

A: Mass percentage (w/w); it is weight relationship, thus mathematically,Mass % of a component= (weight…

Q: Given the unbalanced reaction Cu2O3 + Cl- ⇌ Cu2+ + HClO2, which takes place in acidic solution, what…

A: In the balanced chemical equation, the number of all the atoms are same in both reactant and product…

Q: Acid mine drainage is defined as: The alkaline solution originating from the exposure of metal…

A: Acid mine drainage is the formation of highly acidic water rich in metals.

Q: To analyze the amount of iron (Fe; Mw =  55.85 g/mol) contained in an ore sample, the sample was…

A: Given in the question, Volume of EDTA = 25 ml Molarity of EDTA = 0.2922 M Total moles of EDTA =…

Q: Consider the formation of gibbsite from dissolved aluminum as depicted below: Al3+     +        OH-…

A: Chemical reaction- It consists of reactant (starting material) and products (substances formed in…

Q: The sulfur from 4.00g steel is evolved as dihydrogen sulfide gas and titrated with 1.60 mL of…

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Q: A sample of pyrolusite weighs 0.5000 g. To this is added 0.6674 g of As2O3 and dilute acid. After…

A: NOTE

Q: (a) What is the percentage of MnO2 in a pyrolusite ore if a sample weighing 0.4000 g is treated with…

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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: 5. If 2.46 g of Fe 2+ were oxidized in the reaction Fe2+(aq) + Ce4+( aq ) à Fe3+ (aq) + Ce3+ (aq ),…

A: The molar mass Fe atom is:- 55.85g/mol

Q: A sedimentary rock sample with mass 0.7600 g gave an ignited residue of mixed oxides, SeO, and As2O3…

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Q: The digestion of a 0 1432 g sample of a compound containing phosphorous in a mixture of HNO3 and…

A: Given: Mass of sample = 0.1432 g. Volume of NaOH added = 50.00 mL = 0.050 L…

Q: (g) Differentiate between hypereutectoid and hypoeutectoid alloys

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Q: To study the effects of a weakly acidic medium on the rate of corrosion of a metal alloy, a student…

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