Is it possible to completely restore copper from copper (II) oxide with a mass of 60 g, if it is calcined

Is it possible to completely restore copper from copper (II) oxide with a mass of 60 g, if it is calcined with coal of a mass of 9 g?

Let’s execute the solution:

According to the condition of the problem, we give the equation of the process:
2CuO + C = 2Cu + CO2 – OBP, copper is released.

We make calculations:
M (CuO) = 79.5 g / mol;

M (C) = 12 g / mol;

M (Cu) = 63.5 g / mol.

Let’s determine the amount of starting substances:
Y (CuO) = m / M = 60 / 79.5 = 0.75 mol;

Y (Cu) = 0.75 mol since the amount of substances is equal to 2 mol.

Y (C) = m / M = 9/12 = 0.75 mol.

Find the mass of the product:
m (Cu) = Y * M = 0.75 * 63.5 = 47.63 g

Answer: received copper weighing 47.63 g