Recent questions in Chemical bonding

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What is the bond strength of the nitrogen-hydrogen bond in ammonia (NH3) as compared to the nitrogen-hydrogen bond in hydrazine (N2H4)? Use electronegativity values and bond lengths to justify your answer.

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the standard enthalpy of formation of methane gas (CH4) given the following bond energies: C-C = 347 kJ/molC-H = 413 kJ/mol (Hint: Use the formula ∆Hf° = ∑(bonds broken) - ∑(bonds formed))

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the pH of a 0.1 M solution of acetic acid?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the heat of formation of methane (CH4) given the following bond energy values: C=C (838 kJ/mol), C-H (413 kJ/mol) and H-H (436 kJ/mol)?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the heat of formation (in kJ/mol) of methane (CH4) from its elements carbon (C) and hydrogen (H2) at standard conditions (25°C and 1 atm)? Use the following data for the bond energies: C-H = 414 kJ/mol, H-H = 436 kJ/mol, and C-C = 348 kJ/mol.

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the heat of formation of methane (CH4) at standard conditions (25°C and 1 atm pressure) using the bond energy method?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge on the nitrogen atom in the molecule NO3⁻?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the sulfur atom in the compound SO₂?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the nitrogen atom in the molecule NO₂?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the nitrogen atom in the molecule HNO<sub>3</sub>?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the nitrogen atom in the molecule HNO3?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the nitrogen atom in the molecule HCN?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the nitrogen atom in the molecule HCN? Show your calculations.

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the nitrogen atom in the molecule of ammonia (NH3)? Show your calculations.

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the nitrogen (N) atom in the molecule of ammonia (NH₃)? Show your calculations.

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the nitrogen (N) atom in the molecule of ammonia (NH3)?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the chlorine atom in the molecule ClO2? Show your calculations.

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of the carbon atom in the compound CH3COOH? Show your calculations.

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of sulfur (S) in SO4^(2-)?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the formal charge of each atom in the CH3COOH molecule? Show your calculation and explain the significance of the formal charges in this molecule.

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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