Carbon dioxide is made up of 72.7% of oxygen by mass.What mass of oxygen will be present in 10 g of carbon dioxide?
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Carbon dioxide is made up of 72.7% of oxygen by mass.What mass of oxygen will be present in 10 g of carbon dioxide?
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Answer:
Oxygen has a molar mass of 16.0 g mol−1 , so 1 mole of oxygen atoms has a mass of 16.0 g . Therefore, carbon dioxide has a percent composition of 72.7% oxygen, i.e. for every 100 g of carbon dioxide you get 72.7 g of oxygen.