The thermochemical equation for the combustion of benzene is shown below: 2 C6H6(liq)  +  15 O2(g)  →  12 CO2(g)  +  6 H2O(g)            ΔrH° = -3909.9 kJ/mol-rxn What is the enthalpy change for the combustion of 156.2 g C6H6? a) -3909.9 kJ b) -7819.8 kJ c) +7819.8 kJ    d) +1955.0 kJ

Q: What is the enthalpy change when 0.1 moles of ethanol undergoes complete combustion? The molar…

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Q: The standard enthalpy change for the following reaction is 986 kJ at 298 K. Ca(OH)2(9) → Ca(s) +…

A: The given reaction is  Ca(OH)2 -------> Ca(s) + O2(g) + H2(g)  Delta H = 986 kl/mol

Q: Calculate the enthalpy change for the combustion of 35.5 g gaseous propane (C3H8). C3H8 (g) + 5 O2…

A: Given, Mass of propane = 35.5 gMolar mass of propane = 12×3 + 8×1 g = 44 g∴ Moler of prepane =…

Q: Given the standard enthalpy changes for the following two reactions (1) 4C(s) + 5H2(g)–C,H10(g) AH°…

A: If the given reaction is multiplied by 2 by two, then value of the given standard enthalpy change…

Q: The standard enthalpy change for the following reaction is -3.35×103 kJ at 298 K. 4 Al(s) + 3…

A: We are given the reaction - 4 Al(s) + 3 O2(g)  →   2 Al2O3(s) We proceed as follows,for finding out…

Q: The heat of combustion, AH°C, of acetone, C3H0, is -1790.4 kJ/mol. How many kilojoules of heat are…

A: We have to calculate the heat of combustion.

Q: The white pigment TiO2 is prepared by the reaction of titanium tetrachloride, TiCl4, with water…

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Q: The standard enthalpy change for the following reaction is 35.6 kJ at 298 K. L(s) + Cl2(g) – 2…

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Q: The standard enthalpy change for the following reaction is 270 kJ at 298 K. 2 HNO3(g) N2(g) + H2(g)…

A: Heat of formation of HNO3 = -135KJ/mol

Q: Use the standard reaction enthalpies given below to determine ΔH°rxnfor the following reaction:…

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Q: The standard enthalpy change for the following reaction is 1.11x10 kJ at 298 K. 2 BaO(s) 2 Ba(s) +…

A: By Hess's law of constant heat summation: Equation (ii) = -1/2 x equation (i) ∆H2° = -12×∆H1° ∆H2°…

Q: (1) N2(g) + 202(g)→2NO2(g) AH° = 66.4 kJ (2) 2N½0(g)2N2(g) + O2(g) AH° = -164.2 kJ what is the…

A: Given, N2(g)+2O2(g)→2NO2(g) ∆Ho=66.4kJ--------(1)2N2O(g)→2N2(g)+O2(g) ∆Ho=-164.2kJ--------(2)

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

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Q: The standard enthalpy change for the following reaction is -104 kJ at 298 K. 3 C(s,graphite) +4…

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Q: The standard enthalpy change for the following reaction is -851 kJ at 298 K. 2 Na(s) + O2(g) +…

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Q: Given the thermochemical equations X, +3 Y, → 2XY AH = -330 kJ X, +2Z, → 2XZ, AH = -120 kJ 2Y, +Z, →…

A: Given thermochemical reactions are : X2+3Y2→2XY3                               ∆H1=-330 kJ…

Q: Given the standard enthalpy changes for the following two reactions: ΔΗ° = 9.2 kJ (1) N₂(g) + 2O2(g)…

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Q: Consider the decomposition of liquid benzene, C6H6 (), to gaseous acetylene, C2H2 (g) C6 H6 (1) →…

A: a) When a chemical reaction is reversed, the sign of enthalpy change of reaction also get reversed…

Q: When glucose (C6H12O6) is combusted, it produces CO2 (g) and H2O (l). What is the enthalpy for the…

A: The change in the enthalpy of a reaction when the reactant is converted into product under standard…

Q: The standard enthalpy change for the following reaction is-438 kJ at 298 K. 2 C(s,graphite) + O2(g)…

A: It is given that when 2 moles of solid graphite is reacting with 1 mole of oxygen and 2 moles of…

Q: A scientist measures the standard enthalpy change for the following reaction to be 11.0 kJ…

A: Given: Standard reaction enthalpy= 11.0 kJ

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction   2…

A: Hess' law of constant heat summation: The Hess law states that the change of enthalpy in a chemical…

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

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Q: A scientist measures the standard enthalpy change for the following reaction to be -577.0 kJ:…

A: We have given that  H2CO(g) +O2(g)  →  CO2(g)  + H2O(l)                                   ∆Hrxn =…

Q: The addition of 3.15 g of Ba(OH)2 · 8H2O to a solution of 1.52 g of NH4SCN in 100 g of water in a…

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next…

Q: The following two reactions are known: N2(g) + O2(g) -> 2NO(g) AH = +180.50 kJ N2(g) + 202(g) ---> A…

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Q: The addition of 3.15 g of Ba(OH)₂ 8H₂O to a solution of 1.52 g of NH SCN in 100 g of water in a…

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Q: The standard enthalpy change for the following reaction is -467 kJ at 298 K. Na(s) + 1/2 N2(g) + 3/2…

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Q: A calorimeter contains 16.0 mL of water at 14.5 °C. When 2.20 g of X (a substance with molar mass of…

A: Given :  Mass of X = 2.20 g  Volume of water = 16.0 mL  Heat capacity (C) = 4.18  ∆T = 25.5 - 14.5 =…

Q: A 0.600 g sample of tristearin (C57H11O6), a common fat, is combusted in a bomb calorimeter…

A: Given: Mass of C57H11O6 = 0.600 g. Mass of water = 750.0 g. Heat capacity of calorimeter = 326 J/K.…

Q: A sample of 17.1g of solid with molar mass 71.9g/mol is dissolved in 331g of water initially at…

A: Given: Mass of water= 331 g Tf= 26.8°C Ti= 22.5°C

Q: The combustion of hydrogen-oxygen mixtures is used to produce very high temperatures (ca. 2500 °C)…

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Q: the standard enthalpy of combustion of octane, -5,430kj/mol, applies to the following reaction…

A: C8H18 + 252O2   →8CO2 +  9H2O                 ∆H°=-5,430KJ/mola) 1 mole of combustion ocatne , takes…

Q: The standard enthalpy change for the following reaction is -576 kJ at 298 K. 2 Na(s) + I2(s) –→ 2…

A: Given,

Q: Using the equations Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol CaO (s) + H2O (1) → Ca(OH)2 (s)…

A: Let Ca (s) + 1/2 O2 (g) → CaO (s)  ΔHo = -635 kJ/mol this be equation 1CaO (s) + H2O (l) → Ca(OH)2…

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: The standard enthalpy change for the following reaction is -92.2 kJ at 298 K. N2(g) + 3 H2(g)→2…

A: standard enthalpy change for the reaction is given as, ΔHrxn = -92.2 KJ  Since the enthalpy change…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g)→C„H1(g) AH°…

A: ∆H° is negative means that it is e reaction  To get equation 3 we should multiply equation 2 by 2…

Q: The enthalpy for the formation of 1 mole of NH3(aq)NH3(aq) is -80.29 kJ/molkJ/mol. What is the…

A: The standard molar enthalpy of formation is defined as the standard change in enthalpy for the…

Q: For the chemical reaction H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the molar enthalpy…

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Q: Calcium carbonate can be decomposed upon applying heat with the following equation CaCO3(s)  →…

A: Calcium carbonate can be decomposed upon applying heat with the following equation: CaCO3(s)  →…

Q: The heat of combustion, AH°C, of acetone, C3H,O, is -1790.4 kJ/mol. How many kilojoules of heat are…

A: The combustion is a reaction of the compound in the presence of oxygen. The combustion reaction will…

Q: The standard enthalpy change for the following reaction is -641 kJ at 298 K. Mg(s) + Cl2(g)…

A: From given data we need to calculate the enthalpy change for reverse of the given reaction. As the…

Q: NO3KNO3 is dissolved in 229 g of water at 23.00 °C.   KNO3(s)−→−−H2OK+(aq)+NO−3(aq)   The…

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Q: The standard enthalpy change for the following reaction is -467 kJ at 298 K. Na(s) + 1/2 N2(g) + 3/2…

A: Given,

Q: Given the thermochemical equations X, + 3 Y, → 2XY; AH| = -370 kJ X, + 2Z, → 2 XZ, AH2 = -180 kJ 2…

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Q: （1）Consider the reaction: 2A (g) + 3 B (g) → 2 C (g)     ΔHrxn = +254.3 kJ What will be the…

A: 2A (g) + 3 B (g) → 2 C (g) ΔHrxn = +254.3 kJ Moles of B = 0.471 moles Enthalpy Change = ?

Q: The enthalpy of reaction for the combustion of C to CO2 is -393.5 kJ/mol C, and the enthalpy for the…

A: The reactions given are, 1) C (s) + O2 (g) ------> CO2 (g)                            ΔH = -393.5…

Q: For the chemical reaction H₂ (g) + F₂ (g) → 2 HF (g) ∆H° = -79.2 kJ/mol. What is the molar enthalpy…

A: Basic Rule  If any number is multiplied in reaction then that number is also multiplied in value of…

Q: The combustion of hydrogen-oxygen mixtures is used to produce very high temperatures (ca. 2500 °C)…

A: The question is based on the concept of chemical thermodynamics. first, we have to identify what is…