Question

Atomic mass of
carbonate is __ u​

Answer 1

Answer:

Carbonate Ion is a polyatomic ion with formula of CO3-. Carbonate is a carbon oxoanion.

Explanation:

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Answer 2

Carbonate is an ion, so cannot have an ‘atomic mass’, because those are only for elements.The molar mass of carbonate can be calculated from the atomic masses of the atoms in the carbonate ion.The carbonate ion is CO3, so that’s one atom of carbon, and three atoms of oxygen.So, to work out the molar mass, look at your periodic table, and add the atomic mass of carbon to three times the atomic mass of oxygen.