Question #ba857

1 Answer

It depends on which kind of lead oxide you have made.

Explanation:

Lead will react with oxygen to produce lead oxide. There are two types of lead oxide and we need to know which one is produced.

First possibility :
lead + oxygen ----> lead (II) oxide
2 Pb + O_2 rarr 2PbO

For every 2 moles of Pb, we need 1 mole of O_2. So if we have .66 moles of Pb, we need half that number of moles of O_2 in order to not have any Pb or O_2 left over. (This will also produce 2 moles of PbO_2)
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Second possibility :
lead + oxygen ----> lead (IV) oxide
Pb + O_2 rarr PbO_2

For every 1 mole of Pb, we need 1 mole of O_2. So if we have .66 moles of Pb, we need the same number of moles of O_2 in order to not have any Pb or O_2 left over. (This will also produce 1 mole of PbO_2)