1.

Calculate the Molecular formula unit mass of K^(2) CO_(3), given atomic masses of K = 394 and O = 164

Answer»

SOLUTION :`K_(2) CO_(3) = (2 xx 1C) + (1 xx C) + (3 xx 0) = (2 xx 39) + (1 xx 12) + (3 xx 16)`
`= 78 + 12 + 48`
=`90 + 48 = 138`


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