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Mole Concept

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Question

how to calculate the molecular weight of sodium nitrate?

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Solution

Molecular mass of NaNO₃ can be calculated as follows :-
Molecular mass of Na = 23 u
Molecular mass of N = 14 u
Molecular mass of O = 16 u
Total molecular mass of NaNO₃ = Molecular mass of Na + Molecular mass of N + 3 $\times$ (Molecular mass of O)
Total molecular mass of NaNO₃ = 23 + 14 + 3 $\times$ (16)
Total molecular mass of NaNO₃ = 85 u

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