Calculate the number of oxygen atoms and its mass in 50g of CaCo3

The number of oxygen atoms = 3

Mass = 24 g

The formula of a compound shows the composition of the constituent elements

CaCO₃ is composed of 3 types of elements, namely Ca, C and O

The amounts of each of these elements in the compound CaCO₃:

So the number of oxygen atoms = 3

mass of Oxygen :

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