Which sample of magnesium chloride, $\text{MgCl}_2$, has the same number of moles as $69.6\,\text{g}$ of potassium sulfate, $\text{K}_2\text{SO}_4$?
- A$19.0\,\text{g}$
- B$28.5\,\text{g}$
- C$38.0\,\text{g}$
- D$47.5\,\text{g}$
Chemistry 0620 · IGCSE · The mole and the Avogadro constant