Find the mass of 0.2 mol CaO.

univerkov | April 15, 2021 | education

Given:

n (CaO) = 0.2 mol

To find:

m (CaO) =?

Decision:

n = m / M, based on the formula m = n x M.

Let’s find the molar mass of each element according to the periodic table. Calcium has an atomic mass of 40 and oxygen 16.

M (CaO) = 40 + 16 = 56 g / mol

m (CaO) = 0.2 x 56 = 11.2 g

Answer: m (CaO) = 11.2 g

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