Question

A compound containing phosphorus and oxygen has a molar mass of 219. 9g/mol and an empirical formula of P2O3. Determine its molecular formula.

Answer 1

P₄O₆

Step-by-step explanation:

The molecular formula is a whole number multiple of the empirical formula. that is, if the mole wt is 219.9 gms/mole and the empirical formula weight is 110 gms/mole*, then the whole number multiple is 219.9/110 = 2 => Molecular formula => (P₂O₄)₂ => P₄O₆.

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