The formula to calculate milliequivalents (meq) is:
\[ meq = \frac{g \cdot V \cdot 1000}{MW} \]
Where:
Let's say the amount in grams (g) is 5, the valence (V) is 2, and the molecular weight (MW) is 58.44 g/mol. Using the formula:
\[ meq = \frac{5 \cdot 2 \cdot 1000}{58.44} \]
We get:
\[ meq \approx 171.1 \]
So, the amount in milliequivalents is approximately 171.1 meq.