One of the reactions that occurs in a blast furnace, in which iron ore is converted to cast iron, is Fe,0, + 3C0 → 2Fe + 3CO, Suppose that 1.24 x 10' kg of Fe is obtained from a 1.98 x 10 kg sample of Fe,03. Assuming that the reaction goes to completion, what is the percent purity of Fe,0, in the original sample? % purity

Q: 100 mL 0.25 M NH4OH, 4 g Ca(NO3)2·4H2O, and/or 3 g (NH4)2HPO4.Determine the mass or volume of each…

A:

Q: To determine the amount of iron in a dietary supplement, a random sample of 15 tablets weighing a…

A: A numerical problem based on quantifying Fe in the given tablet, which is to be accomplished.

Q: 2. A 0.6447-g portion of manganese dioxide was added to an acidic solution in which 1.1402 g of a…

A: Answer :-  Mass Percent Of AlCl3 = 26.24% Mass percent of Aluminum chloride, AlCl3 in the sample =…

Q: The calcium content in a 0.4367-g sample of phosphate rock was determined by first dissolving the…

A: Here we have to determine mass percentage of calcium present in 0.4367 gram phosphate rock  if all…

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00L of 2.00MAgNO3(aq) with 1.00L…

A:

Q: A sample of ultrapure silicon was reacted with excess oxidizing yielding SiO₂. After proper…

A: Given that -  Mass of Silicon dioxide SiO2 =  3.1754 g  Percentage of ultrapure silicon = 99.98%…

Q: A small iron pan was analyzed by dissolving a 11.1321 g sample in HCl. The resulting solution was…

A: Given, mass of Fe3O4 = 5.1231 g molar mass of Fe3O4 = 231.533 g/mol !! Calculate the moles of Fe3O4…

Q: In the laboratory you are given the task of separating Ca and Fe" ions in aqueous solution. For each…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: The aluminum in a 0.805 g sample of an unknown material was precipitated as aluminum hydroxide…

A: Given,Mass of Aluminum = 0.805gMass of Al2O3 = 0.127 g Molar mass of Al2O3 is 101.96g/molMolar mass…

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 x102 kg/m³. In a certain…

A: Percent yield = (Practical yield/theoretical yield)×100

Q: 1. A sample of ultrapure silicon was reacted with excess oxidizing yielding SiO₂. After proper…

A: Given : Weight of SiO2 precipitate = 3.1754 g Purity of ultrapure silicon = 99.98%

Q: In the laboratory you are given the task of separating Ag" and Co* ions in aqueous solution. For…

A: Given Ag+ and Co2+   Y or N Reagent Formula of precipitate if yes  1   K2S   2   KBr   3…

Q: A chemist dissolves a 1.497-g sample of a type of metal (an alloy of Sn, Pb, Sb, and Cu) in nitric…

A: Reaction: Sn + 2HNO3 → H2SnO3 + 2NO3 mass of tin = 0.4909 g molar mass of tin oxide  = 150.69 g/mol…

Q: In the laboratory you are given the task of separating Pb2+ and Ag+ ions in aqueous solution.   For…

A:

Q: In the laboratory you are given the task of separating Ba2+ and Zn2+ ions in aqueous solution. For…

A:

Q: 3. Write balanced chemical equations for the following chemical reactions. a. Lime (calcium oxide)…

A: a ) When lime (calcium oxide) with water to produce Slaked lime i.e Calcium hydroxide. The balanced…

Q: The aluminum in a 0.767 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: given: mass of sample of unknown material =0.767 g mass of aluminium oxide produced = 0.143 g…

Q: In the laboratory you are given the task of separating Ca2+ and Zn2+ ions in aqueous solution. For…

A:

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00 L of 2.00 M AGNO3 (ag) with…

A: Given, AgNO3 solution Molarity of AgNO3 solution = 2.00 M = 2.00 mol/L Volume of AgNO3 solution =…

Q: In the laboratory, hydrogen gas of good purity can most easily be obtained by the reaction of a…

A:

Q: The aluminum in a 0.755 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: In order to evaluate concentration of any particular element available in a certain substance, the…

Q: In the laboratory you are given the task of separating Pb2+ and Zn2+ ions in aqueous solution.…

A: Solubility of any compound is defined as the property of solid, liquid, or gaseous substance called…

Q: For the synthesis of boric acid; 7.94 g of anhydrous borax was taken and 15 mL of water was added…

A: Please find the attached images for answer

Q: The aluminum in a 1.520-g sample of impure ammonium aluminum sulfate was precipitated with aqueous…

A: Given data : Mass of sample = 1.520 g  Mass of Al2O3 = 0.2001 g

Q: What is the molarity of toluene in a solution that is prepared by adding 59.3 g of toluene (CH)…

A: Since we know that  Molarity = number of mole of solute /volume of solution in L  First we calculate…

Q: Consider the following chemical reaction. 3 Zn(C:H:O:):(aq) + 2 Na:PO:(aq) → 6 NaC:H:O:(aq) +…

A: Given: Mass (g) of zinc acetate = 20.5 g The given reaction shows that: 3 moles zinc acetate = 1…

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 x102 kg/m³. In a certain…

A: The type of chemical reaction that occurs between methanol and oxygen is a combustion reaction in…

Q: In the laboratory you are given the task of separating Ba and Zn" ions in aqueous solution. For each…

A: yeah its correct  i guess go ahead

Q: The equation for the reaction of copper and dilute nitric acid is: 3Cu + 8HNO3 ⟶⟶ 3Cu(NO3)2 + 2NO +…

A: Answer :-  Volume of Nitric acid (HNO3) solution which contains 27.0% HNO3 by mass and has a density…

Q: What mass of Zn(CN)2 is produced?

A: Mass of Zn(CN)2 produced is 11.70g Zn(CN)2 .

Q: In the laboratory you are given the task of separating Ba2+ and Zn²+. ions in aqueous solution. For…

A: Ionic compounds termed as salts dissolve greely in water. In certain cases, the solubility of a salt…

Q: In the laboratory you are given the task of separating Ca2+ and Zn2+ ions in aqueous solution. For…

A:

Q: A mixture of barium chloride and sulfuric acid yield the precipitate barium sulfate and hydrochloric…

A: Given: Sulfuric Acid is limiting reagent, 39.5 grams of barium sulfate are produced. Molar mass of…

Q: The mercury in a 0.7264 g sample was precipitated with an excess of paraperiodic acid, H5(IO6)2. The…

A:

Q: (iii) When 90.00 mL of 0.200 M MnO4¬(aq) was reacted with 200.00 mL of 0.280M H2O2(aq), the amount…

A: The complete balanced reaction for the question is : 2MnO4- + 3H2O2 →2MnO2 + 3O2 + 2OH- + 2H2O…

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00 L of 2.00 M AGNO, (ag) with…

A: Given: Concentration of AgNO3 = 2M Concentration of NaCl = 4M Volume of AgNO3 = 1 L Volume of NaCl =…

Q: A new method being developed for water treatment uses chlorine dioxide, ClO2, instead of chlorine.…

A: The concentration of sodium chloride (NaClO2), M  = 2.0 M = 2.0 mol/L (M = mol/L) Volume of sodium…

Q: In her chemistry class, Rachel is preparing a special solution for an experiment that she has to…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: a. In the laboratory you are given the task of separating Ca2+ and Pb2+ ions in aqueous solution.…

A: To answer questions regarding separation of ions.

Q: A sample of an iron oxide weighing 14.8 g is heated in a stream of H2(g) until it is completely…

A: Since you have posted a multiple questions, we will solve first one for you. To get remaining…

Q: 3. Consider the nickel salt: (NH4 )2Ni(SO4 )2 ·y H2O (Ammonium Nickel Sulfate Hydrate), where y is…

A:

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.800 M Co(NO₃)₂ reacts with 21.0 mL of…

A: The given chemical reaction is as follows: CoNO32(aq) + 2NaOH(aq) → Co(OH)2(s) + 2NaNO3(aq) The…

Q: CrCl3(s) + AgNO3 (aq)  AgCl(s) + Cr(NO3)3(aq) A 0.810 g sample of impure CrCl3 was dissolved in…

A: Given data,Molarity of AgNO3=0.165MVolume of AgNO3=45.5mL=0.0455LMass of impure CrCl3=0.810g

Q: The aluminum in a 0.685 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: Mass percentage of a component can be calculated by using the formula :  mass %ge of the component…

Q: In the laboratory you are given the task of separating Pb2+ and Ca2+ ions in aqueous solution. For…

A:

Q: The volume of H2SO4 acid has a purity of 98% and a density of 1.83, which is required to prepare 0.1…

A: In such questions mass of solute i.e H2SO4 remains equal in both cases.

Q: Solution A is 0.2400 M Ca(NO)2(aq). Solution A is diluted by a factor of 3 to form Solution B.…

A: The reaction taking place is  3As2O3 + 4NO3- + 7H2O + 4H+ → 6H3AsO4 + 4NO Balancing explanation :…

Q: A sample of ore containing manganese weighed 1.2354 grams. This sample was heated in a solution of…

A: From given  Initially we are calculating number of Mn2S3 and from that number of moles of Mn(NO3)3…

Q: The reaction of NaOH and HCl produces aqueous NaCl as a product.  You are assuming that the small…

A: Sodium hydroxide and hydrochloric acid are reacted to give sodium chloride which is salt and water.…

Q: What is the molarity of toluene in a solution that is prepared by adding 57.9 g of toluene (C7H8)…

A:

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.