Calculate the mass of magnesium that can be burned in 33.6 liters of oxygen.

Calculate the mass of magnesium that can be burned in 33.6 liters of oxygen. The chemical reaction equation is: 2Mg + O2 = 2MgO.

Metallic magnesium is intensively oxidized by oxygen. The oxidation reaction is described by the following equation:

Mg + ½ O2 = MgO;

In this reaction, 1 oxygen atom is added to 1 magnesium atom and 1 molecule of magnesium oxide is synthesized.

Let’s determine the molar amount of oxygen.

To do this, we divide its volume by the volume of 1 mole of gas.

N O2 = 33.6 / 22.4 = 1.5 mol;

During the reaction, twice the amount of magnesium will be oxidized.

Let’s calculate its weight.

Let’s multiply the amount of the substance by the weight of 1 mole of the substance.

M Mg = 24 grams / mol; m Mg = 1.5 x 2 x 24 = 72 grams;