1.

Calculate the molecular mass of the following: NaOH

Answer»

SOLUTION :Molecular mass of NAOH = `(1 xx "atomic mass of NA") + (1 xx "atomic mass of O") + (1 xx "atomic mass of H")`
`= (1 xx 23) + (1 xx 16) + (1 xx 1)`
= 23 + 16 + 1 = 40 u


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