4. Given the balanced reaction: Fe, o, + 3C0 2Fe + 300,
How many moles of CO are required to produce 112 grams of Fe?
(Molar mass of Fe= 55.85 g/
ml)
A. 1.01 mole
B 2.01 moles
C 3.01 moles
D. 4.01 moles

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .