Asked by Anonymous

when 21.6g of carbon were burned in the presence of 73.9g of oxygen 16.3g of oxygen remain unreacted. What mass of carbon dioxide was produced

Answers

Answered by DrBob222
If some O2 remains unreacted, then C is the limiting reagent.
mols C = grams/atomic mass = ?
Using the coefficients in the balanced equation, convert mols C to mols CO2.
Now convert mols CO2 to grams. g = mols x molar mass
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