Recent questions in Chemistry

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Calculate the bond dissociation energy required to break a carbon-carbon single bond in methane (CH4).

asked Jan 23 in ThermoChemistry by JoesphWoffor (2.3k points)

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1 answer 70 views

Calculate the bond dissociation energy of the O-H bond in a water molecule if the enthalpy change for the following reaction is -285.8 kJ/mol:2H2(g) + O2(g) -> 2H2O(l)

asked Jan 23 in ThermoChemistry by LionelBonney (2.0k points)

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1 answer 63 views

Calculate the bond dissociation energy of the O-H bond in a water molecule (H2O) given the enthalpy change for the reaction:H2O (g) → H2 (g) + 1/2 O2 (g)ΔH = +483.6 kJ/mol(Note: the bond dissociation energy represents the energy required to break a bond into its constituent atoms.)

asked Jan 23 in ThermoChemistry by AdelineBurro (1.9k points)

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1 answer 61 views

Calculate the bond dissociation energy of the nitrogen-nitrogen (N-N) bond in N2O4 given that the enthalpy change for the reaction 2N2O4(g) --> 4NO2(g) is -109.7 kJ/mol.

asked Jan 23 in ThermoChemistry by OtisMacGilli (2.0k points)

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1 answer 61 views

Calculate the bond dissociation energy of the H-H bond in the H2 molecule. Given the bond length of H2 is 74 pm and the enthalpy change for the reaction H2(g) → 2H(g) is 436 kJ/mol.

asked Jan 23 in Chemical bonding by SoniaFanny4 (2.3k points)

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1 answer 63 views

Calculate the bond dissociation energy of the H-H bond given the following information: The enthalpy change for the reaction 2H2(g) → 4H(g) is +436 kJ/mol, and the average bond dissociation energy for a H-H bond is 436 kJ/mol.

asked Jan 23 in ThermoChemistry by ZakOleary170 (1.8k points)

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1 answer 15 views

Calculate the bond dissociation energy of the CO molecule, given that the bond length is 1.128 Å and the electron affinity of carbon and oxygen are -154 kJ/mol and -141 kJ/mol, respectively.

asked Jan 23 in Chemical bonding by Phillipp57B1 (2.3k points)

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1 answer 59 views

Calculate the bond dissociation energy of the carbon-hydrogen bond in methane (CH4), given that the reaction CH4(g) → CH3(g) + H(g) has a ΔH° of 435 kJ/mol.

asked Jan 23 in ThermoChemistry by JudithMackni (2.3k points)

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1 answer 63 views

Calculate the bond dissociation energy of the carbon-hydrogen bond in methane (CH4) given that the bond enthalpy of C-H bond is 413 kJ/mol.

asked Jan 23 in Chemical bonding by UnaHolt18437 (1.7k points)

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1 answer 85 views

Calculate the bond dissociation energy of a molecule of hydrogen (H₂) given that the bond length is 74 pm and the energy required to break the bond is 436 kJ/mol.

asked Jan 23 in Chemical bonding by AveryJoris20 (2.0k points)

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1 answer 67 views

Calculate the bond dissociation energy for the single bond in methane (CH4) given the following data: ΔHºf(CH4) = -74.8 kJ/molΔHºrxn = -890.4 kJ/mol Note: The bond dissociation energy is the amount of energy needed to break a bond between two atoms in a molecule, while keeping the other bonds intact.

asked Jan 23 in ThermoChemistry by JulianKnetes (2.0k points)

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1 answer 55 views

Calculate the bond dissociation energy for the H-H bond, given that the average H-H bond energy is 436 kJ/mol. Show all the steps in your calculation.

asked Jan 23 in Chemical bonding by PatsyRubin2 (2.2k points)

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1 answer 69 views

Calculate the bond dissociation energy for the H-H bond in a diatomic hydrogen molecule, given that the enthalpy change for the reaction H2(g) → 2 H(g) is 436 kJ/mol.

asked Jan 23 in ThermoChemistry by PeggyBednall (1.9k points)

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1 answer 64 views

Calculate the bond dissociation energy for the Cl-Cl bond in Cl2(g) given that the standard enthalpy change for the reaction Cl2(g) → 2 Cl(g) is +121 kJ/mol and the bond dissociation energy for the Cl-Cl bond in Cl2(g) is known to be 242 kJ/mol.

asked Jan 23 in ThermoChemistry by MerryGoodsel (1.9k points)

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1 answer 67 views

Calculate the bond dissociation energy for the C-H bond in methane (CH4) using the following data:- The heat of combustion of methane is -890 kJ/mol.- The enthalpy of formation of CO2 is -393.5 kJ/mol.- The enthalpy of formation of H2O is -285.8 kJ/mol.- The heat of combustion of hydrogen is -286 kJ/mol.

asked Jan 23 in ThermoChemistry by NadiaN491716 (2.1k points)

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1 answer 72 views

Calculate the bond dissociation energy (in kJ/mol) required to break the carbon-hydrogen bond in methane using the given bond dissociation energies: C-H = 413 kJ/mol, C-C = 347 kJ/mol, C=C = 602 kJ/mol, H-H = 436 kJ/mol.

asked Jan 23 in ThermoChemistry by GabrielCantu (1.6k points)

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1 answer 69 views

Calculate the bond dissociation energy (in kJ/mol) of the H-Cl bond in hydrogen chloride molecule, given that the bond length is 127 pm and the vibrational frequency is 8.8 x 10^13 Hz.

asked Jan 23 in Chemical bonding by ThadGoetz093 (1.6k points)

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1 answer 83 views

Calculate the bond dissociation energy (in kJ/mol) of the H-Cl bond in HCl using the following data: the standard enthalpy of formation of HCl is -92.31 kJ/mol, the bond energy of H-H is 436 kJ/mol, and the bond energy of Cl-Cl is 240 kJ/mol.

asked Jan 23 in Chemical bonding by Damon31M1921 (2.4k points)

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1 answer 67 views

Calculate the bond dissociation energy (in kJ/mol) of the C-H bond in methane (CH4) using the following given data:- Enthalpy of formation of methane (CH4) = -74.8 kJ/mol- Enthalpy of combustion of methane (CH4) = -890.4 kJ/mol- Enthalpy change for the breaking of all four C-H bonds in methane = 1665 kJ/mol.

asked Jan 23 in ThermoChemistry by ChanteStroh (1.5k points)

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1 answer 59 views

Calculate the bond dissociation energy (in kJ/mol) of the C-H bond in methane (CH4) using the following data: - The enthalpy change for the combustion of one mole of methane gas is -890.3 kJ/mol.- The energy required to break one mole of H-H bonds is 433.4 kJ/mol.- The energy required to break one mole of C=O bonds is 799.5 kJ/mol.- The energy required to break one mole of O-H bonds is 463.0 kJ/mol.

asked Jan 23 in ThermoChemistry by TimNakamura (2.0k points)

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