Question

Ethene is a gas that burns in oxygen to form carbon dioxide and steam. If 2.8 g of ethene burns in excess oxygen. Calculate the mass of carbon dioxide formed.

Answer 1

Ethene (C

2

H

4

) burns in the presence of oxygen (O

2

) to form carbon dioxide (CO

2

) and water (H

2

O) along with the evolution of heat and light. This is a combustion reaction and equation for this can be written as:

C

2

H

4

(g)+3O

2

(g)→2CO

2

(g)+2H

2

O(l)+heat+light