Determine the amount of oxygen that is required to burn calcium weighing 10 g

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

Ca + ½ O2 = CaO;

To burn 1 mol of calcium, 0.5 mol of oxygen is required.

Let’s calculate the amount of calcium available.

M Ca = 40 grams / mol;

N Ca = 10/40 = 0.25 mol;

To oxidize such an amount of calcium, 0.25 / 2 = 0.125 mol of oxygen is required.

Let’s calculate its volume.

1 mol of ideal gas normally takes on a volume of 22.40 liters.

V O2 = 0.125 x 22.40 = 2.8 liters;