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QUESTION

# How many moles are there in 28 grams of CO_2?

28 grams of CO_2 is equivalent to 0.64 moles of CO_2

You divide the given amount by the Gram Formula Mass (Molar Mass) of CO_2.

The Gram Formula Mass for CO_2 is the combined masses of the individual components of the compound.

12 g/mol (for Carbon) and 32 g/mol (for the two Oxygens) for a total of 44 g/mol.

28 g / 44 g/mol = 0.64 mol of CO_2