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

Atoms, molecules and stoichiometry — practice question

Diamond is a pure form of carbon. The mass of a diamond may be measured in carats. One carat is 0.200 g of carbon. Which expression shows the number of carats that contain $6.02 \times 10^{23}$ carbon atoms?

  • A$0.200 \times 12.0$
  • B$\frac{0.200}{12.0}$
  • C$\frac{12.0}{0.200}$
  • D$\frac{0.200}{6.02 \times 10^{23}} \times 12.0$

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