Question

How much oxygen will be required to react with 15g of carbon to form carbon dioxide.Also state the law used to solve the above problem.

Answer 1

ANSWER

C(s) + O

2

→CO

2

(g)

No. of moles of carbon =

12

36

=3 moles

No. of moles of oxygen =

32

32

=1 moles

So, 2 moles of carbon is left and oxygen will be completed.

So, O

2

is limiting reagent