stelly52 stelly52
  • 21-06-2017
  • Chemistry
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How many moles of oxygen can be formed from 250 grams of aluminum oxide

How many moles of oxygen can be formed from 250 grams of aluminum oxide class=

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dec77cat dec77cat
  • 21-06-2017
2Al₂O₃ = 4Al + 3O₂

M(A₂O₃)=101.96 g/mol
m(Al₂O₃)=250 g

n(O₂)=3m(Al₂O₃)/{2M(Al₂O₃)}

n(O₂)=3*250/{2*101.96}=3.678 mol
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