Question

carbon and oxygen combine in the ratio 3 ratio 8 form carbon dioxide . calculate the amount of carbon dioxide formed and the amount of unused reactant when 32gram oxygen reacts with 20 gram of carbon​

Answer 1

Answer:

If 3 g of carbon is burnt in 50 g of oxygen, then 3 g of carbon will react with 8 g of oxygen. The remaining 42 g of oxygen will be left un-reactive. In this case also, only 11 g of carbon dioxide will be formed.

Answer 2

Answer:

This is governed by the law of definite proportion. Carbon and oxygen combine in 3:8 ratio. So 11 g of carbon dioxide is formed.

Hence, in the latter case too, only 8 g of O

2

will be reacted with 3g of carbon (because carbon is the limiting reagent here ) to form 11g of CO

2

and 42 g of oxygen will remain unreacted.

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