Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry

Atoms, molecules and stoichiometry — practice question

In steel-making, the impurity $\text{P}_4\text{O}_{10}$ is eliminated by reacting it with calcium oxide. This reaction forms only the salt calcium phosphate, $\text{Ca}_3(\text{PO}_4)_2$. For this reaction, how many moles of calcium oxide react with 1 mole of $\text{P}_4\text{O}_{10}$?

  • A1
  • B1.5
  • C3
  • D6

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