Calculate the amount of copper oxide substance if 19.2 grams of copper reacts with oxygen

Copper reacts with oxygen to form oxide. The reaction is described by the following chemical reaction equation:

Cu + ½ O2 = CuO ↑;

Let’s calculate the chemical amount of copper. For this purpose, we divide the mass of the available substance by the weight of 1 mole.

M Cu = 64 grams / mol;

N Cu = 19.2 / 64 = 0.3 mol;

The same amount of copper oxide can be obtained.

Determine the weight of copper oxide. To do this, multiply the amount of substance by the weight of 1 mole.

M CuO = 64 + 16 = 80 grams / mol;

m CuO = 0.3 x 80 = 24 grams;