When 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00 g of carbon is burnt in 50.00 g of oxygen ? Which law of chemical combination will govern your answer ?

Explanation

When 3.00 g of carbon is burnt in 8.00 g of oxygen, 11.00 g of carbon dioxide is produced which shows that whole of carbon and oxygen are used up. Therefore, carbon and oxygen combine in the ratio 3: 8 to form carbon dioxide. Therefore, when 3.00 g of carbon is burnt in 50.00 g of oxygen, only 8.00 g of oxygen will be used to produce 11.00 g of carbon dioxide. The remaining oxygen will remain unused.
Our answer is governed by the law of constant proportions.