Ile gramów glinu trzeba użyć do odtlenienia 54g tlenku żelaza III?
2Al + Fe₂O₃ -----> Al₂O₃ + 2Fe
MAl=27g/mol
MFe₂O₃=2*56g/mol+3*16g/mol=112g/mol+48g/mol=160g/mol
2*27g Al - 160g Fe₂O₃
xg Al - 54g Fe₂O₃
54g Al - 160g Fe₂O₃
x=(54g Al*54g Fe₂O₃):160g Fe₂O₃=18,225g Al
54u 160u
2Al + Fe₂O₃ --> Al₂O₃ + 2Fe
x 54g
z proporcji wyliczam x
x = 18,225g
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Pozdrawiam :)
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2Al + Fe₂O₃ -----> Al₂O₃ + 2Fe
MAl=27g/mol
MFe₂O₃=2*56g/mol+3*16g/mol=112g/mol+48g/mol=160g/mol
2*27g Al - 160g Fe₂O₃
xg Al - 54g Fe₂O₃
54g Al - 160g Fe₂O₃
xg Al - 54g Fe₂O₃
x=(54g Al*54g Fe₂O₃):160g Fe₂O₃=18,225g Al
54u 160u
2Al + Fe₂O₃ --> Al₂O₃ + 2Fe
x 54g
z proporcji wyliczam x
x = 18,225g
----------------------------------------------------------------------------------------------------
Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)