The reaction of WCl6 with Al at ~400 °C gives black crystals of a compound containing only tungsten and chlorine. A sample of this compound, when reduced with hydrogen, gives 0.2232 g of tungsten metal and hydrogenchloride, which is absorbed in water. Titration of the hydrochloric acid thus produced requires 46.2 mL of 0.1051 M NaOH to reach the end point. What is the empirical formula of the black tungsten chloride?

Q: 4. How many grams of magnesium oxide can be produced by reacting 0.643 g magnesium that is 94.5%…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: 1.736 g of iron ore is dissolved with acid and precipitated as Fe2O3X.H2O. After the precipitate is…

A: The percentage of the Iron in the sample of iron ore can be calculated as:

Q: Given the following reaction between aluminum and hydrochloric acid: Al (s) + HCI (aq) _AICI3 (aq) +…

A:

Q: A sample of an iron ore is dissolved in acid, and the iron is converted to Fe2+. The sample is then…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Magnesium is obtained from sea water. Ca(OH)2 is added to sea water to precipitate Mg(OH)2. The…

A:

Q: The amount of calcium carbonate with MM:100.1 g/mol in the ore dolomite can be determined by…

A: Hello. Since the question contains more than three sub-parts, the first three subparts shall be only…

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: Bi2O3 is a basic oxide. Write a balanced chemical equation for its reaction with dilute nitric acid.…

A: Given : Bi2O3 is a basic oxide , m = 6.77 g , V = 0.500 L Bi2O3 is known as Bismuth(III) oxide ,…

Q: What volume of 0.333 M Al(NO3)3 is needed to obtain 26.7 g of Al(NO3)3?

A: Given:: Molarity of Al(NO3)3=0.333 M mass of Al(NO3)3= 26.7 g molar mass of Al(NO3)3= 213 g mol-1…

Q: A 0.5683 g sample of a pure soluble bromide compound is dissolved in water, and all of the bromide…

A:

Q: A 0.2417g sample of a compound composed of C,H,O,Cl only, is burned in oxygen yielding 0.4964g of…

A:

Q: Upon heating, 48.6 mL of water was evaporated from 180. mL of 0.302 M C6H12O6(aq). What is the…

A: Given that,concentration of C6H12O6 = 0.302 M = 0.302 mol/Lvolume of the solution = 180 mL = 0.18…

Q: An iron ore was analyzed by dissolving a 1.957-g sample in concentrated HCl. The resulting solution…

A:

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the products…

Q: Aluminum in an ore sample is determined by dissolving it and then precipitating with base as Al(OH)3…

A: Given, 0.2385 g of precipitate

Q: In the preparation of Rochelle salt (MW = 282.83 g/mol), 6.3 grams of monohydrated Sodium carbonate…

A: Monohydrate sodium carbonate (CH2Na2O4) = 6.3 g  Potassium bitartrate (C4H5KO6) = 20 g  Rochelle…

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: When calcium oxide and coke are heated in a electric furnace, the roducts are carbon (ii) oxide and…

A: Calcium oxide reacts with coke to form carbon dioxide and calcium carbide. The reaction is given by:…

Q: What mass of sodium hydroxide, NaOH, would be required to produce 16 g of the antacid milk of…

A: Mass-Mass Relationship :- In these problems , the mass of one of the products/Reactants is to be…

Q: 173: Upon oxidation, barium (Ba) compounds give

A: Since we know that Ba is an alkaline earth metal which generally identify by  flame test .

Q: A sample of an iron ore is dissolved in acid, and the iron is converted to Fe2+. The sample is then…

A: (a) Given, volume of MnO4- = 47.20 mL Molarity = 0.00240 mol/L So, Number of moles of…

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.337 M HCl. All the CaCO3…

A:

Q: The reaction of WCl6 with Al at ~400 °C gives black crystals of a compound containing only tungsten…

A: Given information:Mass of tungsten metal = 0.2232 gVolume = 46.2 mLConcentration of NaOH = 0.1051 M

Q: Zinc and magnesium react with hydrochloric acid to produce the metal chlorides and hydrogen gas. A…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: The mercury in a 1.9458 g sample was precipitated as Hg5(IO6)2  by treatment with an excess of…

A: Given  mass of sample = 1.9458 g mass of precipitate Hg5(IO6)2 = 0.5218 g    Required data -…

Q: Write a balanced equation for the reaction of nitric acid, HNO3(aq), with barium hydroxide,…

A: Nitric acid react with barium hydroxide to give barium nitrate and water. A chemical equation is…

Q: The calcium from a sample of limestone weighing 699mg was precipitated as CaC2O4 and ignited to CaO…

A: The ignition of calcium oxalate can be described as follows: CaC2O4  →  CaCO3  + COCaCO3   →  CaO  +…

Q: If the absorbance of a solution of copper(II) ion decreases by 30.00% upon dilution, what volume of…

A: Absorbance of a solution is directly proportional to the concentration of the solution. On dilution,…

Q: Potassium permanganate in acidic solution is used to titrate a solution of iron(II) ions, with which…

A:

Q: If the above reaction involves the monoprotic acid potassium hydrogen phthalate (KHP, molar mass =…

A: The balanced reaction between the monoprotic potassium hydrogen phthalate, KHP and NaOH can be…

Q: Phosphoric acid, one of the acids used in some cola drinks, is produced by the reaction of…

A: a) The given compound is phosphorous (V) oxide. This suggests that the oxidation state of…

Q: What is the molarity of the chlorate anion in solution after 42.00 mL of 3.000 M NAOH is added to…

A:

Q: Write the reaction using chemical formulas and showing the states of matter (s, 1, g, aq) for the…

A: The given reaction represents a double displacement reaction. In such reactions, simultaneous…

Q: Write a balanced chemical equation for the following reactions and classify reactions. i. Liquid…

A: Here, we have to write the balanced chemical equations and have to classify the reactions: i. when…

Q: The concentration of gold in seawater is 0.027 ug/L. What mass of goid (in kg) is present in the…

A: Given: The concentration of Gold in sea water= 0.024 ug/L. i.e,  1 Liter of seawater contains =…

Q: When aqueous FeCL3 is combined with 100.00 mL of  a base solution containing Ba(OH)2, 0.567g of…

A:

Q: b). A wastewater contains 7.2 mg L-1 phosphorus and is treated with 15 mg L-1 aluminum in the form…

A: Solution -

Q: A 0,4500 g sample of a pesticide (DDT, C14H9Cl5, MM 354,49 g mol^-1) was decomposed with metallic…

A: Given that : Mass of sample of pesticide (DDT, C14H9Cl5) = 0.4500 g Molar mass of pesticide…

Q: s) 0.250 g of HI is dissolved in 300. mL of a 0.00520 M solution of Ca(OH)2. (Assume this does not…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

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: After 1,600 grams of an aluminum sulphate sample is dissolved in water, aluminum is precipitated in…

A:

Q: The maximum permissible amount of cadmium (M=112 g/n) in drinking water is 0.01 mg/L. What is the…

A: Given that : The maximum permissible amount of cadmium in drinking water is 0.01 mg/L. We have to…

Q: Complete and balance the following equations: (a) CO,(8) + OH (aq) → (b) NaHCO,(s) + H*(aq) (c)…

A: Since your question contains multiple subparts we will solve only the first three subparts. For the…

Q: 0.9545 g of calcium nitrate salt, Ca (NO3) 2, is weighed, dissolved in concentrated HCl solution and…

A:

Q: Calcium cyclamate Ca(C6H11NHSO3)2 is an artificial sweetener used in many countries around the world…

A: The given compound is Calcium cyclamate Ca (C6H11NHSO3)2 To find: The balanced equation for the…

Q: In the preparation of Rochelle salt (MW = 282.83 g/mol), 6.6 grams of monohydrated Sodium carbonate…

A:

Q: Indicate the oxidation state of every individual element in the following compounds. g. SO2 j.…

A: The total number of electrons that an atom either gains or loses in order to form a chemical bond…

Q: What is the concentration of NO3- ions in a solution prepared by dissolving 30.0 g of Ca(NO3)2 in…

A: Given,  mass of Ca(NO3)2 = 30.0 g Volume of solution = 300 ml = 0.3 L Molar mass of Ca(NO3)2 =…

Q: A 1.362 g sample of an iron ore that contained FezOawas dissolved in acid and all of the iron was…

A: