Animals breathe oxygen and release carbon dioxide during cellular respiration according to the equation below. how much oxygen is needed to produce 120 grams of carbon dioxide? c6h12o6 + 6o2 -> 6co2 + 6h2o

How much oxygen is needed to produce 120 grams of carbon dioxide? C6H12O6 + 6O2 -> 6CO2 + 6H2O

Let's convert 120 grams of CO2 to moles first using the molar mass, 44.01 g/mol. 120 grams CO2 * (1 mole CO2/44.01 grams CO2) = 2.73 moles CO2

Then using the given reaction, we will get the amount of moles O2 needed using the ratios of the chemicals that react.

2.73 moles CO2 * (6 moles O2/6 moles CO2) = 2.73 moles O2 * ( 32 grams O2 / 1 mole O2) = 87.25 grams O2 <--answer

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