Calculate the mass of copper oxide 2, which is formed by the interaction of 11.2 liters of oxygen with copper
| September 21, 2021 | education
The reaction of the formation of copper oxide.
2Cu + O2 = 2CuO.
Knowing the volume of oxygen, we determine the number of moles.
n (O2) = V / Vm = 11.2 L / 22.4 L / mol = 0.5 mol.
The number of moles of copper oxide, taking into account the reaction coefficients.
n (CuO) = 2 • n (O2) / 1 = 2 • 0.5 mol / 1 = 1 mol.
The mass of copper oxide is.
m (CuO) = n • Mr = 1 mol • 79.55 g / mol = 79.6 g.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
