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rafaelamart1ns
@rafaelamart1ns
March 2022
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Considere a obtenção do ferro, utilizando óxido férrico, conforme a reação: Fe2O3 + 3CO Æ 2Fe + 3 CO2 . Se utilizarmos 4,8 kg de óxido férrico, quanto teremos de ferro, admitindo que a reação tenha um rendimento de 80%?
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pjfaria
MM Fe2O3 = 160g/mol
160g ----------- 1 mol
4800g ----------x
x = 4800/160
x = 30 mols de Fe2O3
30Fe2O3 + 90CO --> 60Fe + 90CO2
60 mols de Fe
60 mols -------------- 100%
x mols ------------------80%
x = 48 mols de Fe
MM Fe = 56g/mol
1 mol ---------------------- 56g
48 mols ----------------------x
x = 2688g = 2,7Kg aproximadamente de Ferro puro
***********************************************************
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160g ----------- 1 mol
4800g ----------x
x = 4800/160
x = 30 mols de Fe2O3
30Fe2O3 + 90CO --> 60Fe + 90CO2
60 mols de Fe
60 mols -------------- 100%
x mols ------------------80%
x = 48 mols de Fe
MM Fe = 56g/mol
1 mol ---------------------- 56g
48 mols ----------------------x
x = 2688g = 2,7Kg aproximadamente de Ferro puro
***********************************************************