What is the molecular formula of S2N if it was simplified by a factor of 2?

The molecular formula : = S₄N₂

Given

The emprirical formula : S₂N

Required

The molecular formula

Solution

The empirical formula is the smallest comparison of atoms of compound forming elements.  

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

(empirical formula) n = molecular formula

A factor of 2⇒n=2

(S₂N)₂=molecular formula

= S₄N₂

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