6. Given the standard enthalpy of combustions of: methane gas (-890.5 kJ/mol), hydrogen gas (-285.9 kJ/mol), C graphite (-393.5 kJ/mol), the bond dissociation enthalpy of hydrogen gas (435.8 kJ/mol), and the latent heat of sublimation of graphite (718.4 kJ/mol) Evaluate the bond enthalpy of the C-H bond in methane. Clearly explain using a brief diagram (description) of the path chosen. Hint: CH4 (2) → C + 4H would represent bond formation

Q: Construct a diagram depicting ΔrxnH° of the above reaction and the standard enthalpies of formation…

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Q: 2. A 1.07 g sample of sulfur was burned in a bomb calorimeter with calorimeter constant of 2.03…

A: Mass of sulfur sample = m = 1.07 g Calorimeter constant = C = 2.03 Kcal/°C Temperature change = ∆T =…

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Q: 3.000 g of Compound X with molecular formula C4H8 are burned in a constant-pressure calorimeter…

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Q: CO2(g) + 4H2(g) CH4(g) + 2H20(g) Given the following standard enthalpies of formation. CO2(g), AH°,…

A: What is the standard enthalpy of the given reaction---

Q: 84. The standard enthalpy of combustion of ethene gas, C,H4(g), is - 1411.1 kJ/mol at 298 K. Given…

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Q: 4. Use tabulated bond energies to estimate the enthalpy of reaction for each of the following gas…

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

Q: Which of the following reactions is associated with the standard molar enthalpy of formation (ΔHof)…

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Q: The standard enthalpies of formation of gaseous propyne(C3H4), propylene (C3H6), and propane (C3H8)…

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Q: Calculate the heat of combustion of 1 mol of ethanol, C2H5OH(l), when the products are CO2(g) and…

A: The combustion reaction taking place is given by  C2H5OH(l) + 3 O2 (g)  -----> 2 CO2 (g) + 3 H2O…

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Q: Calculate the standard enthalpy of formation of NaHCO3(s) given the following information:…

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Q: When 15.0 mL of 3.00 M NaOH was mixed in a calorimeter with 13.0 mL of 3.00 M HCl, both initially at…

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Q: (b) Pentaborane-9, BŞH9, is a colorless, highly reactive liquid that will burst into flame when…

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Q: The enthalpy changes accompanying the dissociation of successive bonds in NH3(g) are 460, 390, and…

A: The reaction for the dissociation of NH3 is: Calculation of mean enthalpy of the N-H bonds:

Q: Given the following standard molar enthalpy of formation (DHof):  (D = delta)…

A: Given,  2CH3OH(l) + 3O2(g) --> 2CO2(g) + 4H2O(l)

Q: 4. Calculate the standard enthalphy change (AH") for the following reaction: H2(g) + I2(g) → 2 HI(g)…

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Q: Hydrobromic acid (HBr) is a commonly used acid for adding bromine to organic compounds. As bromine…

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Q: The combustion of 1.765 g of glucose, C6H12O6(s), in a bomb calorimeter with a heat capacity of 5.70…

A: Given, Mass of glucose, C6H12O6 = 1.765 g Change in temperature, ∆T = T2-T1= 27.01°C-22.18°C=4.83°C…

Q: Need help with #4

A: The balanced reaction taking place is given as, => CuSO4 + 2 KOH  → K2SO4 + Cu(OH)2  Given:…

Q: 7.5 g KNO3 dissociated in 49.0 g of water in a coffee cup calorimeter. The thermometer reading…

A: Given: Mass of KNO3 dissolved = 7.5 g. Mass of water = 49.0 g. Initial temperature of water = 20.4…

Q: The combustion of 1.539 g of glucose, C6H12O6(s), in a bomb calorimeter with a heat capacity of 5.10…

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Q: 1. What is the essence of determining the heat capacity of the calorimeter? Is it possible to…

A: 1. To determine the essence of the heat capacity of the calorimeter.

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Q: Tetrachloromethane, CC14, is formed from methane and chlorine in the following reaction: CH4 (g) + 4…

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Q: When 1.8 g of an unknown salt, A2B3 is added to a calorimeter containing 82 ml of water at 26.8 °C…

A: Given: volume of water = 82 mL. Mass of salt = 1.8 g. Change in temperature = -0.51 oC And the molar…

Q: The standard enthalpy of combustion of ethene gas, C2H4(g), is -1411.1 kJ/mol at 298 K. Given the…

A: The standard enthalpy of combustion of ethene gas, C2H4(g), is -1411.1 kJ/mol at 298 K.  The ΔHf°…

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A: Since walking consume 41 J per day(for 30 minutes). Energy consumed in one week = 7×41= 287J. Energy…

Q: 7. The heat evolved from the combustion of 0.94g ethanol raises the temperature of 250 cm water…

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Q: Determine ΔH in kJ/mol for the following reaction: 2NO(g) + O2(g) --> 2NO2(g) The standard…

A: Given that:  2NO(g) + O2(g) <......> 2NO2(g)  dH°NO = 90.4 KJ/mol  dH°NO2 = 33.9 KJ/mol

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A: Given that standard enthalpy of combustion glucose is -2806 kJ/mol Molar mass of glucose is 180…

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Q: The reaction of 1.00 mol of solid phosphorus with chlorine gas to form PCl3(g) releases 287.0kJ of…

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A: Balance Chemical Equation : C2H5OH(l) + 3O2(g)→2CO2(g) + 3H2O(g) Calculate standard enthalpy of…

Q: AHO ン ran Given: + 183 KJ 12 Nz lg)+ O,5) AH°rxn こ +33 KI

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Q: Given that enthalpy of formation of the several compounds: C(s)+O2(g)→CO2(g);AH=-393.5kJ…

A: Enthalpy is an extensive property will depend on the number of moles of species

Q: 2. When 100.0 mL of a 1.50 M HCl solution is combined with 60.0 mL of a 3.00 M LiOH solution the…

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Q: The combustion of 1.880 g of sucrose, C,H,,O,,(s), in a bomb calorimeter with a heat capacity of…

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Q: What is the enthalpy of reaction,change in heat, for the formation of tungsten carbide,WC,from its…

A: given :  2W(s) + 3O(g) ---->. 2WO(s)  ∆H= - 1685.8 KJ......A C(graf.)+ O2(g) -------> CO2(g)…

Q: The standard enthalpy of combustion of methane gas, CH4(9), is -890.1 kJ/mol at 298 K. Given the…

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Q: a 0.0950 mol sample of benzoic acid was combusted in a bomb calorimeter and the temp in the bomb…

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