Does melting lose or gain energy
2 answers:
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0.019moles
Explanation:
Given parameters:
Mass of Fe₂O₃ = 1.5g
Unknown:
Number of moles of Fe produced = ?
Solution:
To solve this problem, we must work from the known to the unknown. The known specie here is the mass of Fe₂O₃.
First inspect the equation and balance it;
2Fe₂O₃ + 3C → 4Fe + 3CO₂
Now find the number of moles of Fe₂O₃
Number of moles of Fe₂O₃ =
molar mass of Fe₂O₃ = 2(56) + 3(16) = 112 + 48 = 160g/mol
Number of moles = = 0.009375moles
From the equation, we see that;
2 moles of Fe₂O₃ produced 4 moles of Fe
0.009375 moles of Fe₂O₃ will produce = 0.01875moles of Fe
To 2 decimal places;
0.019moles
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Number of moles brainly.com/question/1841136
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