Answer:
4.13 moles of Fe.
Explanation:
Given data:
Moles of iron produced = ?
Moles of Fe₂O₃ = 3.5 mol
Moles of CO = 6.2 mol
Solution:
Chemical equation:
Fe₂O₃ + 3CO → 2Fe + 3CO₂
Now we will compare the moles of iron with CO and Fe₂O₃.
Fe₂O₃ : Fe
1 : 2
3.5 : 2/1×3.5 = 7 mol
CO : Fe
3 : 2
6.2 : 2/3×6.2 = 4.13 mol
The number of moles of iron produced by CO are less it will limiting reactant.
Thus, moles of iron formed in given reaction are 4.13 moles.
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Question 22: conclusion
Question 23: analyze
Answer:
0.6425 moles of
is required to react with 25.7 grams of
.
Explanation:
mas of oxygen gas = 25.7 g
moles of oxygengas = 

According to reaction given above, 5 moles of oxygen gas reacts with 4 moles of ammonia gas.
Then 0.8031 moles of oxygen gas will react with :
of ammonia gas
0.6425 moles of
is required to react with 25.7 grams of
.