8. Thermochemistry
Formation Equations
Multiple Choice
Multiple ChoiceIbuprofen is used as an anti-inflammatory agent used to deal with pain and bring down fevers. If it has a molecular formula of C13H18O2, determine the balanced chemical equation that would give you directly the enthalpy of formation for ibuprofen.
A
13 C (graphite) + H2 (g) + O2 (g) → C13H18O2 (s)
B
13 C (graphite) + 9 H2 (g) + 2 O2 (g) → C13H18O2 (s)
C
13 C (graphite) + 8 H2 (g) + O2 (g) → C13H18O2 (s)
D
13 C (graphite) + 9 H2 (g) + O2 (g) → C13H18O2 (s)
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