Question

If carbon and oxygen combine in 3:8 proportion to form carbon dioxide. If we will add 15 g of carbon to 60g of oxygen , then how much carbon dioxide we will obtain???​

Answer 1

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 carbon will obtain

Answer 2

Explanation:

When 3 grams of carbon is burnt in 8 grams of oxygen , then 11 grams of carbondioxide gets produced . If , 3 grams of carbon is burnt in 50 grams of oxygen then also 11 grams of carbondioxide will gets formed . Carbondioxide gets forms by the sharing if electrons of carbon and oxygen .

As per the given condition, when 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced. Therefore, the law of conservation of mass is proved. Then, it also depicts that the carbon dioxide contains carbon and oxygen in a fixed ratio by mass, which is 3:8.