Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2S(s) + O2(g)  →  2Cu(s) + SO2(g) What mass of copper(I) sulfide is required in order to prepare 223.89 g of copper metal? Molar mass of  Cu = 63.55g/mol Molar mass of  Cu2S = 159.16g/mol

Q: Ammonia gas can be prepared by the reaction of a metal oxide such as calcium oxide with ammonium…

A: Given Mass of CaO = 112 g Mass of NH4Cl = 224 g standard values molar mass of CaO = 56 g/mol molar…

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A: The chemical reaction of precipitation of Rhodium (III) hydroxide from a solution of rhodium (III)…

Q: 9. Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows:…

A: I am supposed to answer only one question please do repost for the rest.

Q: How many moles of CaO are required to react with 97.25 g of HgS?

A: Given :- mass of HgS = 97.25 g  To calculate :- number of moles of CaO required.   Number of moles =…

Q: 8. Pure copper can be produced by the reaction of copper(II) sulfide with oxygen gas as follows:…

A: Given,  Chemical reaction :  CuS(s) + O2(g) -------> Cu(s) + SO2(g)  0.640 g of Cu metal…

Q: Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction 2K [Ag(CN)…

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Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and…

A:

Q: Consider the following reaction at STP: 2 H2S(g) + SO2(g) → 3 S(s) + 2 H2O(g) 11. Determine the…

A: actual amount of products formed from Balanced chemical equation is known as theoretical yield.

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A: Ans: Rh2 (SO4)3 (aq) + 6 NaOH (aq) →2Rh(OH)3(s) +3Na2SO4 Mass  of Rh2 (SO4)3 = 8.03g  Molan Mass of…

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A:

Q: 4.Potassium superoxide, KO2, is used in rebreathing gas masks to generate oxygen. 4KO;(8) + 2H,O(1)…

A: In a chemical reaction, the limiting reagent, or limiting reactant is defined as the substance that…

Q: Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with…

A: Given: Mass of MnO2 = 41.3g Mass of HCl = 44.3g Molar Mass of MnO2 = 86.84 g/mol Molar Mass of HCl =…

Q: Diborane is produced when hydrogen gas reacts with boron as shown by the chemical equation below.…

A: The answer to the following question is-

Q: What mass of carbon dioxide (CO₂) is made when 12.1 g of butane (C₄H₁₀) burns (with excess oxygen)…

A: Chemical Reaction :-   2C₄H₁₀ (g) + 13O₂ (g) → 8CO₂ (g) + 10H₂O (g)  O2 is excess reagent. So, C4H10…

Q: Ammonia (NH) is an important compound since it is used in large amounts for the manufacture of…

A: Given 1.2 mol of Nitrogen and Hydrogen gas  30% of ammonia is reacted  We have to find moles of…

Q: Iron ore, which is composed of mostly Fe₂O3, is converted to cast iron (Fe) in a blast furnace. The…

A: Given the mass of ore = 267.5 Kg Actual mass of pure Fe formed = 159.2 Kg

Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and…

A: Given that the balanced reaction taking place is - 2Al +Fe2O3→Al2O3+2Fe So, It shows that 2 mol of…

Q: 5. Magnesium chloride can be obtained by reacting magnesium hydroxide with hydrochloric acid:…

A:

Q: (3)0L+ (3) →4CO,(g) + 6 H,0(g) noles of CO, are produced when 5.10 mol of ethane is burned in an…

A: Moles of ethane = 5.10 mol From balanced chemical reaction,  2 mol Ethane = 4 mol CO2  5.10 mol…

Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and…

A:

Q: Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows:…

A:

Q: In photosynthesis, green plants convert CO2 and H2O to glocuse, C6H12O6. How many grams of CO2 are…

A: Given,  Mass of C6H12O6 = 5.1 g  Mass of CO2 required to produce 5.1 g of C6H12O6 in photosynthesis…

Q: 12.Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog:…

A: 1-First we will convert grams of P2O5 to moles :  Molar mass of P2O5 = 142gmol-1  Moles of P2O5 = (…

Q: For the following reaction:                         Co(OH)2 + CO2 → CoCO3 + H2O  If 2.44g of…

A:

Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and…

A:

Q: Solutions of sodium hypochlorite, NaCIO, are sold as a bleach (such as Clorox). They are prepared by…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: The neutralization reaction between hydrochloric acid and calcium hydroxide produces calcium…

A: Number of moles of any substance can be calculated by using the formula :…

Q: The equation for the decomposition of potassium chlorate is written as…

A:

Q: Consider the following reaction: 2 K(s) + S(s) + 2 O2(g) --> K2SO4(s) If you start off with…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Camels store the fat tristearin (C57H110O6) in the hump. As well as being a source of energy the fat…

A: First of all we balanced the combustion reaction of protein, then we calculated the mass of water…

Q: e. What mass of oxygen gas, O2, from the air is. consumed in the combustion of 702 g of octane.…

A: A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in…

Q: For the following balanced reaction: 2H2 + O2 = 2 H2O How many grams of H2O (Molar mass: 18g/mol)…

A: For the following balanced reaction: 2H2 + O2 = 2 H2O

Q: Potassium chlorate decomposes upon slight heating in the presence of a catalyst according to the…

A: Theoretical yield is calculated using mole-mass analysis on given chemical reaction.

Q: A sample of 49.0 g of tetraphosphorous decoxide (P,O10) reacts with 49.0 g of water to produce…

A:

Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and…

A:

Q: If ammonia can be produced from calcium oxide and ammonium chloride according to the following…

A: Ammonia can be produced from calcium oxide and ammonium chlorideaccording to the following…

Q: The diagram (Figure 1) represents a high-temperature reaction between CH4 and H₂O. Figure i Part A…

A: Here as 2 moles CH4 reacts with 2-Moles H2O so there is no excess reagent is present,this we can…

Q: Hydrogen fuel can be generated using a process called coal gasification. Hydrogen gas is formed by…

A: Given that,    Hydrogen gas fuel is generated by the reaction of coal and oxygen in the presence of…

Q: Thermite reaction is necessary to produce molten iron. This reaction involves Fe3O4 and Al and is…

A: For the given reaction: 8Al      +   3Fe3O4 →   9Fe  +  4Al2O3 8 mol        3 mol         9 mol    4…

Q: Ammonia NH3 can be syntheszied by the following reaction: 2NO+5H2-->2NH3+2H20. If you start with…

A:

Q: Given Co to + HNO₂ a) Balance the rxn. (!,!,!,!). by A student combines. C6H₂ NO₂ + 1.83 mol HNO₂…

A: Given the moles of HNO3(aq) taken = 1.83 mol  molecules of benzene, C6H6 taken = 1.22*1024…

Q: How many grams of N2 are needed to completely (stoichiometrically) react with 222 g of Br2 ? N2 + 3…

A:

Q: Silicon nitride (Si3N4) a valuable ceramic, is made by the direct combination of silicon and…

A: Unbalanced reaction can be written as

Q: A method used by the U.S. Environmental Protection Agency (EPA) for determining the concentration of…

A: Molecular weight of O3 = 48 g/mol Molecular weight of NaI = 149.9 g/mol

Q: Mercury can be obtained by reacting mercury(II) sulfide, HgS, with calcium oxide, CaO. How many…

A: Given preparation reaction of liquid Mercury; 4HgS(s) +   4CaO(s)  --->   4Hg(l)  + 3CaS(s)  +…

Q: 1)The mass of the product obtained from the precipitation reactions is always less than expected.…

A: Two questions based on solutions concept, which are to be accomplished.

Q: 3. If at S.T.P 4.48 L of NH3(g) is allowed to react with 9.03 x 1022 molecules of O₂(g), please…

A:

Q: ilver is often extracted from ores such as K[Ag(CN)_2] and then recovered by the reaction…

A: The number of particles present in one mole of a substance is equal to the Avogadro's number which…

Q: Determine the number of molecules of Cr2Os that form when 1.34 x 10° g of oxygen completely reacts…

A: Chromium reacts with oxygen to form chromium(III) oxide. The equation for the balanced chemical…

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".