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

The mole and the Avogadro constant — practice question

How many moles of hydrogen atoms are present in $3.2\,\text{g}$ of methane?

  • A$0.02$
  • B$0.2$
  • C$0.4$
  • D$0.8$

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