In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be needed in the reaction?

6 answers

well,

12g C + 32g O2 → 44g CO2

??

If all 18g of C were used, there would be only 66g CO2.

Am I missing something here?
I don't think so. I answered the same way for Mariah about a week ago. The problem may be a faulty one OR she is not posting the numbers correctly.
as did I.
i know its not 18 i just checked and it was wrong so that marks that answer out.
54
it is 72.