Aluminum metal is produced by passing an electric current through a solution of aluminum oxide(Al2o3) dissolved in molten cryolite(Na3Alf6). Calculate the molar masses of Al2o3 and Na3Alf6.

Q: Copper is a heavy metal with considerable dangers to the human body, regardless of the quantity.…

A: The water body is said to conatain Cu(NO3)2. Here we will remove copper by a single displacement…

Q: acetic acid (HC2H3O2) is a liquid and is known as glacial acetic acid. Calculate the molarity of a…

A: Given-> Volume of glacial acetic acid = 25.00 ml Density of glacial acetic acid = 1.05 g/ml Final…

Q: calculate the percentage purity of Na2CO3

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Q: mass of empty calorimeter (g) 22.39 mass of hot water (g) 119.4 initial temp (Celsius) 64.43 mass…

A: When ice would be placed in hot water , hot water would release heat and ice would gain heat . At…

Q: 1.) NaOEt, EtOH 2.) HCI, H2O, heat

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Q: 25 ppm of CaCO3 was found in the water sample obtained on the lake in the nearby town. Calculate the…

A: Given :  Concentration of CaCO3 = 25 ppm  Volume of water sample = 10 litres  Density of water = 997…

Q: What mass of concentrated sulfuric  ( a 95% solution of H2SO4 by mas) is needed to prepare 500. g of…

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Q: metry etween magnesium fluoride and lead (IV) nitrate, m fluoride available: balance the chemical…

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Q: 0.05601 g of oxalic acid dihydrate is reacted with 25.00 mL of a sodium hydroxide solution.…

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Q: The balanced chemical equation for the reaction between silver nitrate and copper is: 2 AgNO3 ( aq )…

A: 1mole of copper and 2 moles of silver nitrate. React to produce 1mole of copper nitrate and 2moles…

Q: Camels store the fat tristearin, C57H110O6, in their humps. In addition to being a source of energy,…

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Q: Write chemical equations for each of the following chemical and physical processes: (a)…

A: A physical process is one in which no chemical reaction occurs and no chemical bond is formed or…

Q: If You observe a the formation of heat when two solutions are mixed you can reasonably conclude that…

A: Chemical reaction, a process in which one or more substances, the reactants, are converted to one or…

Q: Apollo 13 Lunar Mission You are a NASA engineer. You are the chief engineer for the Apollo 13…

A: Given data; 6.7×1025 particles of NaOH are present There are three astronauts and each will emit 500…

Q: For the chemical equation  2HBr (aq) + Ba(OH)2 (aq) yields to 2H2O (L) + BaBr2 (aq)  write the net…

A: Net ionic equation involves only the ions that actually take part in the reaction excluding the…

Q: Hydrogen fluoride is a highly reactive gas. It has many industrial uses, but the most familiar…

A: The given reaction in equilibrium is shown below. The pressure of H2 and F2 is 3.08 bar. The value…

Q: Consider the Haber process shown below. N2 (g) + 3 H2 (g) → 2 NH3 (g) Which of the following…

A: Given N2 (g) + 3H₂ (g) → 2NH3(g) Standard values Molar mass of N2 = 28 g/mol Molar mass of H2 = 2…

Q: You are the purchasing agent for a mill that is processing 1,500,000 yards a week of a cotton fabric…

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Q: Reaction 3: N₂(g) + 20₂(g) Reaction 2 can be described as an [Select] [Select] reaction 2NO₂(g) ΔΗ =…

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Q: Question is attached

A: The chemical reactions include various types they are combination reaction, displacement reaction…

Q: Give the reaction type: CaCl2•3H2O (s) + ∆  ⟶ CaCl2 (s) + 3H2O (g)

A: In the given chemical reaction in which heating take place, 3 molecules of water realeases which is…

Q: Toluene (C7H8), a common organic solvent, combusts with oxygen...

A: According to the Law of Consevation of mass " all atoms of various elements must be equal in both…

Q: The reaction 2 H2 (g) + O2 (g) → 2 H2O (g) is used to produce electricity in a hydrogen fuel cell.…

A: Limiting reagent: It is defined as the reactant in a chemical reaction which is present in lesser…

Q: There is a double displacement between calcium carbonate and hydrogen chloride to yield calcium…

A: Solution: We know calcium carbonate is basic in nature,so react with Acid HCl. CaCO3 + HCl =>…

Q: What volume of 0.750 M hydrochloric acid solution can be prepared from the HCl produced by the…

A: We have given that  1. What volume of 0.750 M hydrochloric acid solution can be prepared from the…

Q: (a) Write chemical equations to show what happens when each of the following substances is mixed…

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

Q: Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for…

A: Given, The first step, phosphorus and oxygen react to form diphosphorus pentoxide: P4(l) + 5O2(g)…

Q: Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for…

A: Chemical reactions can be added, subtracted, or multiplied like an algebraic equation.

Q: What is the maximum mass of silver that can be obtained when 0.0202 g of hydrogen gas is bubbled…

A: Mass of Hydrogen = 0.0202 g Mass of silver nitrate = 2.81 g

Q: From the balanced reactions representing complete and incomplete combustions of methane gas, give…

A: Find the molar ratio of oxygen gas to methane gas in complete and incomplete combustion of methane ?

Q: 2 g of aluminium metal is mixed with 11.5 g of sulphuric acid, H2SO4 to form aluminium sulphate and…

A: Metals react with acid to form salt and release hydrogen gas. A balanced equation is the equation in…

Q: 1. Solid lithium hydroxide is used to remove carbon dioxide and is called a CO2 scrubber. This…

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Q: Calculations: Calculate the moles of each reactant. Note that the hydrobromic acid and hydrogen…

A: For the bromination of cinnamic acid, in situ combination of HBr and H2O2 is used in the mixture…

Q: What mass of concentrated sulfuric  ( a 95% solution of H2SO4 by mas) is needed to prepare 500. g of…

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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: The first step in the extraction of copper metal from its ore is shown below. The numbers beneath…

A: Given the reaction is as follows: 4CuFeS2s+9O2g→2Cu2Ss+2Fe2O3s+6SO2g

Q: The correct amount of KF and of water that must be mixed to prepare 225 grams of a 4.18% by mass…

A: Mass of KF is calculated as follows: Mass % = Mass of the solute KFMass of solution×100 %4.18 % =…

Q: Balance the following equation Na+CI2>Na2O

A: Introduction: The chemical equation shows the reaction between the two or chemical species and their…

Q: Calculate the mass of limestone () that must be decomposed to produce 415 g of CaO is produced. The…

A: The given balanced equation is shown below. CaCO3s→CaOs+CO2g The given mass of CaO is 415 g.

Q: A solution is prepared by dissolving 125 g sucrose (C12H22O11) in 135 g H2O.  Calculate the mass %…

A: Given; The mass of the solute is 125 g. The mass of water is 135 g.

Q: Calculate the mass of limestone () that must be decomposed to produce 425 g of lime (). The equation…

A: Mass of lime stone (CaCO3) produced = 758.93 g

Q: Write chemical equations for each of the following chemical and physical processes: (a)…

A: given all the statements, write the equation

Q: fuel mixture comprising 600.0 g of NH4ClO4 and 400.0 g of Al is used in a test of a laboratory scale…

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Q: Apollo 13 Lunar Mission You are a NASA engineer. You are the chief engineer for the Apollo 13…

A:

Q: Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for…

A: To get the net chemical equation, we need to cancel out the species that is present on both the…

Q: Diiodine pentaoxide oxidizes carbon monoxide to carbon dioxide under room conditions, yielding…

A: Oxidation is the loss of electrons. Reduction is the gain of electrons. In terms of oxygen transfer,…

Q: What type of reaction is represented by the following equation: CoCl2(aq) + 2NAOH(aq) Co(OH)2(s) +…

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Q: "Native," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide…

A: (a) As specified by the question - one copper penny has a mass of 3g. therefore, 100 copper penny…

Q: A solution of sucralose (molar mass= 397.6 g/mol) was made dissolving 27.53 g of sucralose into 895…

A: Molarity is measure of concentration of solution. Here given  values are, Mass of sucralose= 27.53 g…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".