Question
A salt crystal has a mass of $0.12 \mathrm{mg}$. How many moles of $\mathrm{Na}^{+}$ are present in the crystal? How many $\mathrm{Na}^{+}$ions are present?
Step 1
Assuming the salt is sodium chloride (NaCl), each formula unit contains one sodium ion (\(\mathrm{Na}^{+}\)) and one chloride ion (\(\mathrm{Cl}^{-}\)). Show more…
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