A scientist measures the standard enthalpy change for the following reaction to be 79.4 kJ: NH,CI(aq)NH3(®) + HCl(aq) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of HCl(aq) is kJ/mol.

Q: The combustion of diborane, B2H6B2H6 at constant pressure, proceeds according to the equation…

A: The given chemical reaction is as follows: B2H6(g) + 3O2(g) → B2O3(s) + 3H2O(l)…

Q: A scientist measures the standard enthalpy change for the following reaction to be 316.2 kJ : H2S(g)…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -910.7 kJ:…

A: Standard enthalpy (∆H°f) of formation of a substance is furnished as the enthalpy change associated…

Q: The combustion of diborane, B2H6B2H6 at constant pressure, proceeds according to the equation…

A: The enthalpy of formation of B2H6 is 31.46 KJ/mol or 0.03146 MJ/mol.

Q: Determine the standard enthalpy change for the combustion of butane (C4H10) forming water (H2O)…

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Q: A scientist measures the standard enthalpy change for the following reaction to be 16.5 kJ :CO(g) +…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -19.4 kJ :…

A: Given reaction  Ca(OH)2(aq) + 2 HCl(aq)     ------- >     CaCl2(s) + 2 H2O(l)  Δ H rxn = -19.4 KJ…

Q: the standard enthalpy of formation of HCl(aq)  is  kJ/mol.

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Q: A scientist measures the standard enthalpy change for the following reaction to be -132.2 kJ :…

A: Given chemical reaction is  4HCl(g) + O2(g) ---> 2H2O(g) + 2 Cl2(g) Standard Enthalpy change of…

Q: A scientist measures the standard enthalpy change for the following reaction to be -1142.2 kJ:…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -29.5 kJ: I2(g)…

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Q: A scientist measures the standard enthalpy change for the following reaction to be 5.4 kJ : Fe(s) +…

A: The Standard enthalpy change for the reaction (∆H°rxn) = 5.4 KJ Reaction: Fe(s) + 2 HCl (aq)…

Q: The combustion reaction of nitromethane fuel occurs as follows: → 2 CO2(g) + 3 H20(1) + N2(g) 2…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -888.5 kJ :…

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Q: The standard enthalpy of combustion of octane, C8H180 is -5471 kJ-mol-1. The standard enthalpies of…

A: Given,  Standard enthalpy of combustion of C8H18 (l) = ΔH0 = -5471 KJ/mole  Standard enthalpy of…

Q: Many portable gas heaters and grills use propane, C3H$(g). Using enthalpies of formation, calculate…

A: The standard enthalpy of reaction is the enthalpy change that occurs in a system when matter is…

Q: A scientist measures the standard enthalpy change for the following reaction to be -189.6 kJ :…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -146.4 kJ:…

A: The standard enthalpy of formation of a compound is the enthalpy change that occurs when 1 mole of…

Q: A scientist measures the standard enthalpy change for the following reaction to be -14.6 kJ :…

A: The expression for the enthalpy change is:

Q: A scientist measures the standard enthalpy change for the following reaction to be -2905.8 kJ:…

A: Given:- Reaction -> 2C2H6(g) + 7O2(g) -> 4CO2(g) + 6H2O(g)  Standard enthalpy change for given…

Q: A scientist measures the standard enthalpy change for the following reaction to be -1152.8 kJ:…

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Q: For which one of the following substances is the standard enthalpy of formation, AHf, equal to zero?…

A: Answer: option b: lead [Pb(s)]; having standard enthalpy of formation (∆Hf), equal to zero.

Q: What two conditions must be met by a thermochemical equation so that its enthalpy change can be…

A: ∆Hf° is the sign of change in standard enthalpy of formation. Where , "∆" denotes change in enthalpy…

Q: A scientist measures the standard enthalpy change for the following reaction to be -661.2 kJ : ...…

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Q: Which balanced chemical equation corresponds to the enthalpy of formation (ΔHfo) of formaldehyde,…

A: Enthalpy of Formation is defined as the energy change to form one mole of compounds from its…

Q: A scientist measures the standard enthalpy change for the following reaction to be 209.8 kJ :…

A: Given: CH4(g) + H2O(g) --> 3H2(g) + CO(g) ∆H=209.8 kJ ∆H = ∑∆Hf (product) -∑∆Hf (Reactant)  209.8…

Q: A scientist measures the standard enthalpy change for the following reaction to be -145.7 kJ :…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: A scientist measures the standard enthalpy change for the following reaction to be 54.7 kJ :…

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Q: A scientist measures the standard enthalpy change for the following reaction to be 4.4 k) : Fe(s) +…

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Q: ) Write an equation for the combustion of 1 mol of pentane gas, C5H12(g), to form carbon dioxide gas…

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Q: A scientist measures the standard enthalpy change for the following reaction to be 215.5 kJ : CH4(g)…

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Q: A scientist measures the standard enthalpy change for the following reaction to be 80.1 kJ:…

A: Solution- ∆Hreaction=2∆HofFe2O4+∆Hof(H2O)- 3∆HofFe2O4+∆Hof(H2)∆Hreaction=2∆HofFe2O4+(-241.818kJ)-…

Q: P4.10 We return to the 58-kg hiker of P4.9, who is climb- ing the 828-m-tall Burj Khalifa in Dubai.…

A: Given the mass of the body, m = 58 Kg * 1000 g1 Kg= 58000 g Given 1 energy bar = 1.25*103 kJ Energy…

Q: The standard enthalpy changes of combustion of glucose and ethanol are given as -2820 and -1368 kJ…

A: The balanced chemical equation for the combustion of glucose is,6C6H12O6(s) + 6O2(g) → 6CO2(g) +…

Q: A scientist measures the standard enthalpy change for the following reaction to be -200.7 kJ :…

A: The given reaction is as follows: CO(g) + 3H2(g) → CH4(g) + H2O(g) The standard enthalpy change for…

Q: when octane (C8H18) is burned under standard conditions, the enthalpy of combustion is -5698.34KJ /…

A: Given: The enthalpy of combustion is -5698.34 KJ/mol.

Q: A scientist measures the standard enthalpy change for the following reaction to be 214.3 kJ :…

A: Based on this value and the standard enthalpies of formation for the other substances, the standard…

Q: A scientist measures the standard enthalpy change for the following reaction to be 161.3 k):…

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

Q: standard enthalpy change for the following reaction to be -208.6 kJ : CO(g) + 3 H2(g)CH4(g) +…

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Q: A scientist measures the standard enthalpy change for the following reaction to be 6.7 kJ : CO(g) +…

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Q: A scientist measures the standard enthalpy change for the following reaction to be 208.5 kJ :…

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Q: A scientist measures the standard enthalpy change for the following reaction to be 158.9 kJ:…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -1122.2 kJ :…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -876.7 kJ :…

A: The given thermochemical equation is 2NH3(g) + 3N2O(g)  ------> 4N2(g) + 3H2O(g) ; ∆Horxn = -…

Q: the standard enthalpy change for the following reaction to be -896.4 kJ : 4NH3(g) + 5 O2(g)4NO(g) +…

A: Given,  4 NH3(g) + 5 O2(g)  ------> 4 NO(g) + 6 H2O(g)  ∆H0Reaction = -896.4 kJ  The standard…

Q: A scientist measures the standard enthalpy change for the following reaction to be 151.6 kJ :…

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Q: The standard molar enthalpy of formation for oxygen gas, O2(g), is zero. The enthalpy of formation…

A: Molar enthalpy of formation of a substance is the energy required or released when one mole of a…

Q: the standard enthalpy change for the following reaction to be -912.5 kJ: 2NH3(g) + 3 N2O(g)4N2(g) +…

A: Enthalpy of a system is defined as sum of internal energy and its additional pressure volume energy.…

Q: A scientist measures the standard enthalpy change for the following reaction to be -876.3 kJ:…

A: Solution:- Balanced chemical reaction:- 2NH3(g) + 3N2O(g) → 4N2(g) + 3H2O(g) ∆Hf = -876.3 kJ…

Q: A scientist measures the standard enthalpy change for the following reaction to be -679.7 kJ :…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…