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What Mass of Oxygen Is Consumed When 285

Question 77

Multiple Choice

What mass of oxygen is consumed when 285.5 kJ of energy is evolved from the combustion of a mixture of H2(g) and O2(g) ?
H2(g) + What mass of oxygen is consumed when 285.5 kJ of energy is evolved from the combustion of a mixture of H<sub>2</sub>(g) and O<sub>2</sub>(g) ? H<sub>2</sub>(g) + O<sub>2</sub>(g) → H<sub>2</sub>O(l) ; ΔH° = -285.8 kJ A) 15.98 g B) 31.96 g C) 0.01564 g D) 31.98 g E) 0.01679 g
O2(g) → H2O(l) ; ΔH° = -285.8 kJ


A) 15.98 g
B) 31.96 g
C) 0.01564 g
D) 31.98 g
E) 0.01679 g

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