Question

if 3g of carbon burns in 8g oxygen to produce 11g of carbon dioxide. then how much carbon dioxide will be produced if 2g of carbon is burnt in 3g of oxygen. which law of chemical combination will govern you answer? ​

Answer 1

Explanation:

C+O

2

→CO

2

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