Asked by Lance

A mixture of the compounds sodium oxide and magnesium chloride contains 2.4182 g of sodium oxide and is 89.3 % by mass magnesium chloride. The sodium oxide is 74.200 % by mass sodium. Calculate the moles of oxygen in the mixture.

Thanks in advance.
Answered by DrBob222
All of those numbers are meant to confuse you. You need only grams Na2O. The other numbers are useless.
2.4182 g Na2O/molar mass = mols Na2O
mols O = mols Na2O.
Answered by Lance
I knew something was fishy about this question. Thank you!
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