Answered

When 29.8 mole of aluminum reacts with excess oxygen according to the following reaction, how many moles of aluminum oxide can be produced?

4 Al + 3 O2 → 2 Al2O3



Answer :

ayec
use dimensional analysis.
first, you put 29.8 mole of Al at the top.
And, in the next column you put 2 mole of Al2O3 at the top and 4 mole of Al at the bottom.
Then, you multiply 29.8 and 2 and then divide by 4. that will give you the answer 14.9 mole of Al2O3.

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