How many moles CO2 are present? That will be moles = grams/molar mass.
Then there are 2 O atoms in 1 molecule CO2; therefore, multiply moles CO2 x 2 = moles O atoms.
Finally, moles O atoms x 6.022E23 = # O atoms.
a sample of carbon dioxide gas has a mass of 52.0g. how many oxygen atoms arr present?explain
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1 answer