Question

.. calculate the mass of carbon dioxide formed on burning of 12 gram of carbon in the presence of 32 gram of oxygen​

Answer 1

Considering that 1 atom of carbon reacts with 2 atoms of oxygen;

Considering that 1 dozen atoms of carbon reacts with 2 dozen atoms of oxygen;

Considering that a mole is a number in the same way that a dozen is a number;

Considering 1 mole of carbon atoms reacts with 2 moles of oxygen atoms;

Considering that 1 mole of carbon atoms is 12 grams and 2 moles of oxygen atoms is 32 grams

THEN 12g C + 32g O = 44 g CO₂