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Mass relationships in chemical reaction.

For the combustion of methane, beginning with 3.15 mole of CH4.
How many moles of CO2 are obtained when the CH4 is completely combusted?

1 answer

The balanced chemical equation for the combustion of methane is:

CH4 + 2O2 -> CO2 + 2H2O

According to the equation, for every 1 mole of CH4 consumed, 1 mole of CO2 is produced. Therefore, if we start with 3.15 moles of CH4, we will obtain 3.15 moles of CO2 when it is completely combusted.

Answer: 3.15 moles of CO2 are obtained when the CH4 is completely combusted.