In CO2, carbon and oxygen are present in the ratio 3: 8. If 6 g of carbon is made to react with 150 g of
oxygen, how much carbon dioxide will be produced?
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In CO2, carbon and oxygen are present in the ratio 3: 8. If 6 g of carbon is made to react with 150 g of
oxygen, how much carbon dioxide will be produced?
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Answer:
C+O2→CO2
3g 8g 11g
Total mass of reactants = mass of carbon + mass of oxygen =3+8=11g
Total mass of reactants = Total mass of products
Hence, the law of conservation of mass is proved.
Further, it also shows carbon dioxide contains carbon and oxygen in a fixed ratio by mass, which is 3:8.
Thus it also proves the law of constant proportions. 3 g of carbon must also combine with 8 g of oxygen only.
This means that (50−8)=42g of oxygen will remain unreacted.