Determine the amount of the substance 122 g of calcium oxide.
| July 13, 2021 | education
A mole is the amount of a substance containing as many structural units (molecules, atoms, ions) as there are atoms in 12 g of the 12C carbon isotope. The relationship between the molar mass of substances (M), the amount of a substance and the mass (m) can be represented as follows: n = m / M.
m = 122 g, M = 56 g / mol. It follows that the amount of substance n = 122/56 = 2.17 (mol).
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