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

The mole and the Avogadro constant — practice question

What number of sodium ions are present in $30\,\text{g}$ of sodium sulfate?

  • A$1.52 \times 10^{23}$
  • B$2.54 \times 10^{23}$
  • C$6.02 \times 10^{23}$
  • D$1.20 \times 10^{24}$

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