Calculate the mass of burned carbon if, as a result of the combustion reaction, carbon monoxide

Calculate the mass of burned carbon if, as a result of the combustion reaction, carbon monoxide is released in an amount of 0.4 mol.

Decision:
Legend: C – carbon; О2 – carbon monoxide
c + o2 = co2
Let us denote by x the mass of the burned carbon.
Let’s make the proportion:
x: 12 = 0.4: 1
Let us express from it x
x = 12 * 0.4
x = 4.8
Answer: m = 4.8



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