What mass of copper can be obtained by reducing 25kg of copper concentrate

What mass of copper can be obtained by reducing 25kg of copper concentrate with carbon monoxide containing. 80% copper oxide2 with the formula.

Find the mass of copper in copper concentrate.

25 kg – 100%,

X = 80%,

X = (25 kg × 80%): 100% = 20 kg.

Let’s find the amount of substance CuO.

n = m: M.

M (CuO) = 80 kg / kmol.

n = 20kg: 80 kg / kmol = 0.25 kmol.

Let’s compose the reaction equation, find the quantitative relationships of substances.

CuO + CO = Cu + CO2

According to the reaction equation, there is 1 kmol of Cu per 1 kmol of CuO. Substances are in quantitative ratios 1: 1.

n (Cu) = n (CuO) = 0.25 kmol.

Let us find the mass of Cu.

M (Cu) = 64 kg / kmol.

m = n × M.

m = 64 kg / kmol × 0.25 kmol = 16 kg.

Answer: 16 kg.