Chemistry

Question Analysis
This question evaluates the student's ability to convert the number of formula units to moles using Avogadro's number.

Key Concept Explanation
Avogadro's number, , is the number of formula units in one mole of an ionic compound.

Step-by-step Solution
1. Identify the given number of formula units: formula units of NaCl.
2. Use the formula to convert formula units to moles: