Question

If 12g of carbon is burnt in the presence of 32g of oxygen, how much carbon dioxide will be formed ?

Answer 1

Total mass of carbon = 12 g

Total mass of oxide = 32 g

Total mass of carbon dioxide = ?

Applying law of conservation of mass

Total mass of reactant = total mass of product

C + O2 = CO2

12g +32g = CO2

44g = CO2

Hope this will help u

Answer 2

Given

12g of carbon is burnt in the presence of 32g of oxygen

To find

The amount of Carbon Dioxide will be formed

Solution

We can simply solve this mathematical problem by using the following  process.

The law of conservation of mass states that mass can neither be created nor destroyed or mass of reactants is always equal to that of products.

C  +  O2  →  $CO_{2}$

 Carbon + Oxygen → Carbon dioxide

Mass of reactants = 12 + 32 = 44 g

Mass of Product (CO2) = 44 g  (One mole of C reacts with 1 mole of oxygen to form 1 mole of CO2)

Hence 44g of Carbon dioxide will be formed when it is burnt in presence of oxygen.