# Chemistry

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

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

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

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5. Ok thanks so much.

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