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

Atoms, molecules and stoichiometry — practice question

A $2.76\,\text{g}$ sample of ethanol was combined with excess aqueous acidified potassium dichromate(VI). The reaction mixture was then heated under reflux for one hour. The organic product needed was afterwards obtained by distillation. The product yield was $75.0\%$. What mass of product was collected?

  • A$1.26\,\text{g}$
  • B$1.98\,\text{g}$
  • C$2.07\,\text{g}$
  • D$2.70\,\text{g}$

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