4. What quantity of heat is evolved with 4.5 mol H2O(I) is formed from the combustion of H2(g) an 02(g)? 2H2(a) + 02(a) - 2H2O(U) ЛН — 5716 kL

Q: 2. For which of the following is the enthalpy of the reaction the same as the enthalpy of formation?…

A: The standard enthalpy of formation is the reaction enthalpy when the formation of one mole of a…

Q: The enthalpy of formation for H2O(g), CO2(g), and C2H5OH(l), in kJ/mol, are given as follows:…

A:

Q: Care must be taken when diluting sulfuric acid with water,because the dilution process is highly…

A: SOLUTION: Step 1: (a). The chemical equation for the dilution of sulfuric acid is as follows:…

Q: The following equation indicates that when 1 mole of carbon burns completely in air or oxygen 393 kJ…

A: Given  ∆H = - 393 KJ  Heat evolved on complete combustion of 19 mole of C and 18 gram of Carbon = ?…

Q: tchange = 6,80 11. The element radon is at the opposite end of the range, with the lowest specific…

A:

Q: how much energy in kilojoules is produced when 1.00 g of propane is completely combusted?

A:

Q: Given that AG°; for SF = -1105 kj/mol, and AG°, = -374 kj/mol, what is AG°; for SF, in the following…

A: SF4 (g) + F2 (g)  ↔ SF6 (g) ΔGrxno = Σ[ΔGfo]products - Σ[ΔGfo]reactantsGiven that,ΔGrxno = -374…

Q: 5.108 The combustion of 0.4196 g of a hydrocarbon releases17.55 kJ of heat. The masses of the…

A: Since the data for second part is incomplete. Only part (a) has been solved. Please re submit the…

Q: 2 X+ Y2Z3 →2 Y+ X2Z3, AH = -325 kJ/mol Given the equation above how many kilojoules of heat are…

A: Given that: 2X + Y2Z3    ----->  2Y + X2Z3     ∆H = -325 kJ/mol

Q: Given the following thermochemical equations,   NO(g) + O3(g) → NO2(g) + O2(g) ΔH = −198.9 kJ/mol…

A: The given reaction is, 2NO2(g) →2NO(g) + O2(g)   The equations for the formation of given reaction…

Q: PCl3 is a compound used to manufacture pesticides. A reaction requires that 100.0 g of PCl3 be…

A: Applying formula Q= mc∆t

Q: What is the enthalpy of reaction (∆Hrxn)? Why is this quantity importan

A: ANSWER

Q: Given the heats of formation DHfo(CO2(g)) = -393.5 kJ/mol, DHfo(H2O(l)) = -285.9 kJ/mol…

A:

Q: Lightweight camping stoves typically use a mixture of Cs and C6 hydrocarbons, which is called white…

A: Molecular mass of C5H12 = 72.15g/mol Enthalpy of combustion = -3550kJ/mol Volume of water = 1.5L Ti…

Q: A 0.5865-g sample of lactic acid (HC3H5O3) reacts with oxygen in a calorimeter whose heat capacity…

A: Mass of lactic acid = 0.5865 g Heat capacity  of lactic acid , C =4.812kJ/°C Initial temperature T1…

Q: What mass of octane (C8H18) must be burned in order to release 5340 kJ of heat? DHcomb = – 5471…

A: Heat of reaction or enthalpy change ∆Hrxn is defined as heat released and absorbed during a…

Q: 9. The evaporation of water is endothermic: H2O (1) → H2O (g) AH°rxn = 44.01 kJ/mol What minimum…

A: H°rxn = 44.01 kJ / mol

Q: 2. When 2.00 g of hydrazine (H,N2) decompose into 1.33 equivalents of NH3(8) and 1 equivalent of…

A: When 2.00 g of hydrazine N2H4 decompose into 1.33 equivalents of NH3(g) and 1 equivalent of N2(g) at…

Q: water? The #49 Find the heat absorbed from the Surrounding when according to 15g of 02 the equatin:…

A: Given information, Mass of Oxygen is 15 g.

Q: 3. This reaction: CHalg) + 20(g) CO(g) + 2H;O1) produces 56.0 kJ of heat when 1.00 g of methane is…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The standard molar enthalpy of formation of NH3(g) is −45 kJ/mol. What is the enthalpy change if…

A: Standard molar enthalpy of formation of NH3(g) = -45 kj/mol Moles of N2 gas = Given MassMolar…

Q: 2 NH3(g) + 3 N2O(g) ----> 4 N2(g) + 3 H2O(l)

A: Enthalpy change is defined as the difference in total heat of formation of reactant and total heat…

Q: When 0.560 g of Na(s) reacts with excess F2(g) to form NaF(s), 13.8 kJ of heat is evolved at…

A: The solution of above question is-

Q: Ethylene (C2H4) is the starting material for the preparation of polyethylene. Although typically…

A: Considering the given statement shows that 1 mole of C2H4 gives 1411kJ.Hence, 1411kJ of heat is…

Q: when butane (C4H10) in a cigarette lighter undergoes combustion, it evolves 2880 kJ per mole of…

A: When butane (C4H10) in a cigarette lighter undergoes combustion, it evolves 2880 kJ per mole of…

Q: 1.) The enthalpy of formation of BaCl2(s) is -858.6 kJ/mol, which of the following st

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: 187 g 662g 44.Given that CaO(s) + H,O(1) Ca(OH)2(s), AH°, =-64.8 kJ/mol, how many grams of CaO must…

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

Q: Consider the balanced reaction 2 A + 9 B -→ 6 C + 2 D and the enthalpies of formation provided in…

A: The given balanced reaction is, 2 A + 9 E  → 6 C + 2 D ΔHf (A) = -101.8 kJ/mol ΔHf (B) =  66 kJ/mol…

Q: Hydrazine, N2H41), is used in rocket fuels. The thermochemical equation for the combustion of…

A:

Q: Consider the hypothetical thermochemical equation 3 A+ B 2 C for which AH = 59.3 kJ/mol. %3D If the…

A: Ans

Q: When 18.5 g of HgO(s) is decomposed to form Hg(l) and O2(g), 7.75 kJ of heat is absorbed at…

A: From standard sources, we get:- Molar mass of HgO = 216.59 g/mol Amount of HgO consumed = 18.5g

Q: How much heat is evolved when 4.03 g of wateris producedwith excess oxygen?(6pts)H2(g)+ O2(g)→H2O(l)…

A: Answer:- This question is answered by using the simple concept of calculation of heat evolved using…

Q: 2SO2(g) + O2(g) → 2SO<(g) DH= -198.2 kJ/mol Calculate the heat evolved when 87.9 g of SO2 (molar…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: If the heat of combustion for a mole of methane (CH) is -2,200 kJ, how  many grams of methane must…

A: The enthalpy of condensation (or heat of condensation) is by definition equal to the enthalpy of…

Q: When one mole of ethylene gas, C2H4, reacts with fluorine gas, hydrogen fluoride and carbon…

A:

Q: What is the enthalpy change when  2.00 mol of oxygen (O2) react? C12H22O11(s)   + 12 O2(g) →    12…

A: Given,C12H22O11(s) + 12 O2(g)    →    12 CO2(g) + 11 H2O(l)        ΔH = -5644 kJThis means that,…

Q: What quantity in moles of H, are required to give off 2301 kJ of heat in the following reaction? N,…

A: We have to calculate the moles of hydrogen gas required.

Q: Heat produced from HCl-NaOH reaction (J) assume the heat capacity of 1 M NaCl is 3.93 5681.94…

A: Balanced chemical reaction is given by, HCl+NaOH→NaCl+H2O

Q: The reaction N2(g) + 3H2(g) --> 2NH3(g) at 400.0°C has an associated heat of reaction -92.22 kJ/mol.…

A: The given chemical reaction is as follows: N2(g) + 3H2(g) → 2NH3(g)                    ∆Hr=-92.22…

Q: The combustion of propane gas (C3H8; molar mass = 44.09 g/mol) occurs according to the following…

A: The balanced Chemical equation for combustion of propane gas given in question is - C3H8(g)  +…

Q: What is the enthalpy change when a 50.00 g sample of methane undergoes complete combustion according…

A:

Q: Use standard enthalpies of formation to calculate ΔHrxn∘ for the following reaction:…

A: The reaction given is N2O4 (g) + 4 H2 (g) → N2 (g) + 4 H2O (g) The standard enthalpies of formation…

Q: Given the following reactions: N2 (g) + O2 (g) → 2NO (g) AH = +180.7 kJ 2N20 (g) → O2 (g) + 2N2 (g)…

A: The reactions given are, 1) N2 (g) + O2 (g) → 2 NO (g)                    ΔH = +180.7 KJ2) 2 N2O (g)…

Q: What is the enthalpy of the reaction, in kJ/mol, knowing that 7.5 g KNO3 absorbs 2597 J of energy?…

A:

Q: The combustion of 0.1584 g benzoic acid increases the temperature of a bomb calorimeter by 2.54°C.…

A: A) Given: Mass of benzoic acid = 0.1584 g Increase in temperature of a bomb calorimeter=2.54°C. The…

Q: What is the experimental specific heat value for xenon gas?

A: When heat is added to a substance the temperature will change in a certain amount. the amount of…

Q: The enthalpy of formation of H2O(l) is -285.8 kJ/mol. What is the enthalpy change if 1.62 g H2(g)…

A:

Q: Consider the following reaction: C3H8 + 5 O2 --> 3 CO2 + 4 H2O If the overall reaction has an…

A: Enthalpy of reaction = -2220 KJ/mole  This means that 2220 KJ heat is released when 1 mole of C3H8…

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.