Roasting galena [lead(II) sulfide] is a step in the industrial isolation of lead. How many liters of sulfur dioxide, measured at STP, are produced by the reaction of 3.75 kg of galena with 228L of oxygen gas at 220°C and 2.0 atm?Lead(II) oxide also forms. Use the usual exponential notation (coefficient, then e, followed by exponent, space then unit).

Q: Ammonia is not the only possible fertilizer. Others include urea, which can be produced by the…

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Q: The combustion of octane, C8H18 , proceeds according to the reaction shown. 2C8H18(I) + 25 O2…

A: The number of moles of carbon dioxide, produced in the reaction, is calculated as shown below where…

Q: Q: 42.5 L of ammonia (NH3) and 51.0 L of oxygen (O₂), both at STP, react according to the following…

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

Q: A 0.4366 g sample of a compound of carbon, oxygen and hydrogen is burned completely and 453 mL of…

A: Given: mass of compound = 0.4366 g

Q: Determine the volume of O2 (at STP) needed to form 1.455 L of SO2 at STP. (Hint: it is not necessary…

A: Given equation 4 FeS2(s) + 11 O2(g) → 2 Fe2O3(s) + 8 SO2(g)

Q: A mixture of KCl and KClO3 weighing 1.92 grams was heated; the dry O2 generated occupied 148 mL at…

A: Mass of mixture = 1.92 g Volume of O2(V) = 148 mL = 0.148L STP is standard temperature and pressure.…

Q: A gas cylinder contains 1.40 mol He,1.40 mol He, 1.10 mol Ne,1.10 mol Ne, and 2.10 mol Ar.2.10 mol…

A: The gas cylinder contains helium, neon and argon.

Q: moles

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Q: Consider the reaction for the synthesis of nitric acid:3 NO2( g) + H2O(l) → 2 HNO3(aq) + NO( g)(a)…

A: Given, Volume of NO2 = 12.8 L Amount of Water = 14.9 g Actual yield of HNO3 = 14.8 g Formula Used,…

Q: impure sample of NaClO3 having a mass of 25.0 grams was heated until all the NaClO3 had decomposed.…

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Q: Lithium reacts with nitrogen gas according to the following reaction: 6Li(s)+N2(g)→2Li3N(s) What…

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Q: A mixture used by divers for breathing purposes contains 34.3% helium (He), 51.7% nitrogen (N2) and…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Temperature = 45.0 oCVVolume of gas = 116 mL

Q: When 15.0 g of fluorite (CaF2) reacts with excess sulfuric acid, hydrogen fluoride gas is collected…

A: . The reaction is as follows CaF2(s) +H2SO4(excess) →2HF(g) +CaSO4(s) Moles of calcium fluorite…

Q: A 0.3177  g sample of a compound of carbon, nitrogen and hydrogen is burned completely and  326 mL…

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Q: Methanol (CH3OH) is an important industrial compound that is produced from the reaction CO (g)+2H2…

A: At STP volume of 1 mole of gas is 22.4 L.

Q: produce 25.0L of O2(g) at 1.55atm and 28.5oC?  2KClO3(s) 2KCl(s) + 3O2

A: The question is based on the concept of Reaction Stoichiometry.   We have to  calculate the mass of…

Q: From the balanced chemical equation: 2C6H6(l) + 15O2(g)  12CO2(g) + 6H2O(l) How much CO2 (in L) is…

A: Given:  2C6H6(l) + 15O2(g) --> 12CO2(g) + 6H2O(l)

Q: The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the…

A: The given reaction is as follows:

Q: Consider the following reaction:      2 NaHCO3(s)  -->  Na2CO3(s)  +  CO2(g)  +  H2O(l) How many…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: 5. A 1.000 g sample of an alloy containing only Mg and Al was reacted with dilute sulfuric acid and…

A: Given that a sample contain only magnesium and aluminium which will react with dilute sulphuric…

Q: The combustion of octane, Cg H18, proceeds according to the reaction shown. 2 C8H₁8 (1) + 25 O₂(g) →…

A: An ideal gas follows a theoretical concept in which there is no interparticle interaction between…

Q: Silver oxide decomposes completely at temperatures in excess of 300 oC to produce metallic silver…

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Q: How many liters of H. gas would be produced by the complete reaction of 2.93 g of Al solid at STP…

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Q: calculate the volume of SO, gas (in mL)

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: What volume in liters of H₂ gas would be produced by the complete reaction of 2.93 g of Al solid at…

A: The number of moles of solid Al reacted =

Q: A helium-filled balloon of the type used in long-distance flying contains 490,000 ft³ (1.4 x 107 L)…

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Q: Consider the following reaction of the commercial production of SO3 using sulfur dioxide and oxygen:…

A: We have given the balance chemical equation as follow                                       2SO2(g )…

Q: 1.50 moles of Fe 3O 4 is formed in the reaction 4 H 2O(g) + 3 Fe(s) → Fe 3O 4(s) + 4 H 2(g). How…

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Q: If water is added to magnesium nitride, ammonia gas is produced when the mixture is heated. Mg3N2(s)…

A: Given: Mg3N2(s)+3H2O(l)→3MgO(s)+2NH3(g) Mass of H2O=5.25 g To find: Volume of ammonia gas at STP…

Q: From the balanced chemical equation: 2C6H6(l) + 15O2(g)  12CO2(g) + 6H2O(l) How much CO2 (in L) is…

A: At S. T. P, volume of 1 mol of gas is = 22.4 L

Q: hen heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the…

A:

Q: the balanced chemical equation: 2C6H6(l) + 15O2(g)  - 12CO2(g) + 6H2O(l) How much CO2 (in L) is…

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Q: What mass of Fe₂O3 is produced when 21.9 L of O₂ gas react with FeS at 433 K and 3.92 atm. 4 FeS(s)…

A: The ideal gas equation shows the relation between pressure, volume, temperature and number of moles.…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: A fuel cylinder for a camping stove contains 5.6 oz butane (C4H10), which produces 67.3 L of butane…

A: The balanced chemical reaction of the combustion of butane is as follows:The stoichiometry of the…

Q: Oxygen can be generated in the laboratory by heating potassium chlorate until it decomposes. What…

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Q: 11. A weather balloon is filled with helium that occupies a volume of 5.00 x 104 L at 0.995 atm and…

A: Given,  Initial volume, V1 = 5.00x104 L  Initial pressure, P1 = 0.995 atm  Initial temperature, T1 =…

Q: Hydrogen gas is collected at 40oC during the following reaction:   Al          +            HCl…

A: From given datas Initially we are calculating number of moles from the balanced equation and then…

Q: What was the initial temperature in Celsius?

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: thesis of hydrogen and nitrogen. How many grams of ammonia gas can be formed from 13.7 L of hydrogen…

A: the most popular and useful method for the synthesis of the ammonia is by Haber–Bosch process…

Q: Oxygen was discovered by decomposing mercury (II) oxide. HgO(s) --> Hg (l) + O2(g) What volume of…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.