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

Atoms, molecules and stoichiometry — practice question

Lead(IV) chloride can oxidise bromide ions, forming bromine. In this reaction, the $\text{Pb}^{4+}$ ions are reduced to $\text{Pb}^{2+}$ ions. When $6.980\ \text{g}$ of lead(IV) chloride is mixed with an excess of sodium bromide solution, what mass of bromine is formed?

  • A$0.799\ \text{g}$
  • B$1.598\ \text{g}$
  • C$3.196\ \text{g}$
  • D$6.392\ \text{g}$

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