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When 18.5 g of HgO(s) is decomposed to form Hg(l) and O2(g), 7.75 kJ of heat is absorbed at standard-state conditions. What is the standard enthalpy of formation (ΔH°f) of HgO(s)?
(A) –90.7 kJ/mol
(B) –7.75 kJ/mol
(C) 0.419 kJ/mol
(D) 27.9 kJ/mol
(E) 143 kJ/mol
When 18.5 g of HgO(s) is decomposed to form Hg(l) and O2(g), 7.75 kJ of heat is absorbed at standard-state conditions. What is the standard enthalpy of formation (ΔH°f) of HgO(s)?
(A) –90.7 kJ/mol
(B) –7.75 kJ/mol
(C) 0.419 kJ/mol
(D) 27.9 kJ/mol
(E) 143 kJ/mol
(A) –90.7 kJ/mol