Question

25. Calculate the weight of CO2 gas formed when 60 gram of Carbon is heated in
Oxygen.(Atomic wt of C=12 ,O=16)

​

Answer 1

Explanation:

22 g of CO

2

will be formed when 6 g of carbon is burnt in 32 g of oxygen.

C+O

2

→CO

2

The atomic mass of C is 12 g/mol. The molecular masses of O

2

and CO

2

are 32 g/mol and 44 g/mol respectively.

12 g C will combine with 32 g O

2

to form 44 g CO

2

.

6 g C will combine with 32 g O

2

to form 22 g CO

2

.

Hence, the option (D) is the correct answer.