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Answer the following question:
Calculate the formula unit masses of \(ZnO\), \(Na_2O\), \(K_2CO_3\), given atomic masses of Zn = 65 u, Na = 23 u, K = 39 u, C = 12 u, and O = 16 u.
The formula unit mass of
(i). \(ZnO\) = 65 u + 16 u = .
(ii). \(Na_2O\) = (23 u x 2) + 16 u = 46 u + 16 u = .
(iii). \(K_2CO_3\) = (39 u x 2) + 12 u + 16 u x 3
= 78 u + 12 u + 48 u = .
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