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Using Hess's law, what is the standard enthalpy of formation, Hfof manganese(II) oxide, MnO(s)? ...

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Using Hess's law, what is the standard enthalpy of formation, Hfof manganese(II) oxide, MnO(s)? ...

Using Hess's law, what is the standard enthalpy of formation, ΔH°_fof manganese(II) oxide, MnO(s)?

2MnO₂(s) → 2MnO(s) + O₂(g)	ΔH°_rxn = +272.0 kJ/mol
MnO₂(s) + Mn(s) → 2MnO(s)	ΔH°_rxn = –248.9 kJ/mol

▸ –520.9 kJ/mol

▸ –396.5 kJ/mol

▸ –384.9 kJ/mol

▸ –147.6 kJ/mol

▸ 24 kJ/mol

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Chemistry: Atoms First

Edition: 4^th

Author: Burdge

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