What is the formula for calculating the concentration of a solid solution?

The formula for calculating the concentration of a solid solution is weight (grams) divided by volume (milliliters), often expressed per a specific volume, such as 100 milliliters. This reflects how much solute is present in a given volume of solution, allowing for a clear understanding of concentration.

Using this method provides a straightforward way to express concentration, which is essential in pharmacy and pharmacology for dosing and formulations. Expressing concentration in this manner helps ensure proper medicine dosing and safety in patient care. In the context of the options provided, the first choice correctly identifies that concentration is derived from the weight of the solute in grams relative to a fixed volume of 100 milliliters.

The other options do not align with the standard approach to calculate concentration of a solid solution as they either measure volume instead of weight or use different units that do not standardize the relationship necessary to express concentration effectively. This makes the first choice the most appropriate and accurate representation of how concentration should be calculated in a solid solution.