Chemistry

How many kilograms of aluminum can be extracted from 2.0 metric tons of the ore 'alumina' (Al2O3)?

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asked by Nathalie
  1. Would you take the percentage of aluminum in the ore:

    53.96/101.96 = 52.92

    then take that much out of 2.0 metric tons or 2000 kg?

    So would it be 1058.40 kilograms?

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    posted by Nathalie
  2. Convert 2.0 metric tons Al2O3 to grams Al2O3.
    Convert grams Al2O3 to mols Al2O3.
    Convert mols Al2O3 to mols Al knowing that there are 2 mols Al for every mol Al2O3.
    Convert mols Al to grams Al remembering that mols x atomic mass = grams.
    Finally, convert grams Al to kg Al.
    Check my thinking.

    Post your work if you get stuck.

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    posted by DrBob222
  3. So.. my work wasn't right. Above your message?

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    posted by Nathalie
  4. No, your answer is correct. I just did it the long way. You took the short route. Very good.

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    posted by DrBob222
  5. Ok thanks so much.

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    posted by Nathalie

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