Determine the mass of oxygen required to react with carbon of mass 9.6.

The carbon combustion reaction is described by the following chemical reaction equation:

C + O2 = CO2;

Carbon reacts with oxygen in equal molar amounts.

The same amount of carbon dioxide will be synthesized.

Let’s determine the chemical amount of a substance in 9.6 grams of carbon.

To do this, divide the weight of the substance by the weight of 1 mole of the substance.

M C = 12 grams / mol;

N C = 9.6 / 12 = 0.8 mol;

To oxidize such an amount of a substance, 0.8 mol of oxygen is needed.

Let’s calculate its weight.

To do this, we multiply the amount of substance by the weight of 1 mole of gas.

M O2 = 16 x 2 = 32 grams / mol;

m O2 = 1 x 32 = 32 grams;