Question

Phosphorus forms two oxides, which have the empirical formulae of P2O3 and P2O5.
a. Which oxide contains the higher percentage of phosphorus? (Show your calculation)
b. What mass of phosphorus will combine with 1mole of oxygen molecules to form P2O3?
c. What is the molecular formula of the oxide that has a formula mass of 284?
d. Suggest a molecular formula for the other oxide.

Answer 1

Answer:

1. p2O3
2. 1 mole of oxygen combines to form p2O3
3. molecular formula- p2O3+p2o5

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Answer 2

Answer:

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