Which expression describes solubility as milliliters of solvent required to dissolve 100 grams of solute?

Which expression describes solubility as milliliters of solvent required to dissolve 100 grams of solute?

• A. g of solute soluble in 1 mL of solvent
• B. g of solute soluble in 100 mL of solvent
• C. mL of solvent required to dissolve 1 g of solute
• D. mL of solvent required to dissolve 100 g of solute

Answer: (D)

Solubility can be described by how much solvent is needed to dissolve a fixed amount of solute. When the expression specifies the milliliters of solvent required to dissolve 100 grams of solute, it is measuring solvent volume per 100 g of solute, i.e., milliliters per 100 g. This directly matches the idea of “solvent needed for a fixed amount of solute.” Other common formulations describe solubility as grams of solute per unit volume of solvent or per a different fixed amount of solvent (for example, per 1 mL or per 100 mL), or describe solvent needed for a different fixed amount of solute (such as per 1 g). Those do not fit the exact phrasing of solvent required to dissolve 100 g of solute, which is why the stated form is the correct one.

Solubility can be described by how much solvent is needed to dissolve a fixed amount of solute. When the expression specifies the milliliters of solvent required to dissolve 100 grams of solute, it is measuring solvent volume per 100 g of solute, i.e., milliliters per 100 g. This directly matches the idea of “solvent needed for a fixed amount of solute.”

Other common formulations describe solubility as grams of solute per unit volume of solvent or per a different fixed amount of solvent (for example, per 1 mL or per 100 mL), or describe solvent needed for a different fixed amount of solute (such as per 1 g). Those do not fit the exact phrasing of solvent required to dissolve 100 g of solute, which is why the stated form is the correct one.