Determine the mass of zinc that will react with 32 g of oxygen.

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

Zn + ½ O2 = ZnO;

With 0.5 mole of oxygen, 1 mole of metal reacts.

Let’s calculate the chemical amount of a substance contained in 32 grams of oxygen.

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

N O2 = 32/32 = 1 mol;

With this amount, 2 moles of metal can be oxidized.

Let’s calculate its weight.

M Zn = 65 grams / mol;

m Zn = 65 x 2 = 130 grams;