The number of moles of carbon atoms in carbon monoxide 2 with a mass of 56 is equal to.

Given:
m (CO) = 56 g

To find:
n (C in CO) -?

Solution:
1) Using the periodic system of D.I.Mendeleev, calculate the molar mass of carbon monoxide (II):
M (CO) = Mr (CO) = Ar (C) * N (C) + Ar (O) * N (O) = 12 * 1 + 16 * 1 = 28 g / mol;
2) Calculate the amount of carbon monoxide (II) substance:
n (CO) = m (CO) / M (CO) = 56/28 = 2 mol;
3) Calculate the number of moles of carbon atoms in carbon monoxide (II):
n (C in CO) = n (CO) = 2 mol.

Answer: The number of moles of carbon atoms in carbon monoxide (II) is 2 moles.