Chemistry 5070 · O Level · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

What mass of oxygen gas is needed to react completely with exactly $16\,\text{g}$ of sulfur to produce sulfur dioxide, $\text{SO}_2$?

  • A$4\,\text{g}$
  • B$8\,\text{g}$
  • C$16\,\text{g}$
  • D$32\,\text{g}$

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