Question

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

Answer 1

HELLO THERE!

Very simple question...

First, let me tell you the reaction:

C + O₂ ------> CO₂

Ratio of stoichiometric coefficients = 1:1:1

We know,

Molecular weight of Carbon (C) = 12

Molecular weight of Oxygen (O₂) = 32

Molecular weight of Carbon dioxide (CO₂) = 44

Since ratio of stoichiometric coefficients is 1:1:1,

if you take molecular masses of the reactants,

in a Direct Combination Reaction, the mass of product formed will be equal to the molecular weight of the product.

Hence, 44 grams of carbon dioxide is formed.