Mass/Volume percentage is defined as:

Mass/Volume percentage is defined as:

• A. (mL of solution / grams of solute) x 100
• B. (grams of solute / mL solution) x 100
• C. (grams of solvent / mL solution) x 100
• D. (grams of solute / L solution) x 100

Answer: (B)

Mass/volume percentage tells you how much solute, by mass, is present in a given volume of solution. The standard way to express this is to take the mass of the solute in grams and divide by the volume of the entire solution in milliliters, then multiply by 100 to get a percent. This is why the formula uses grams of solute in the numerator and milliliters of solution in the denominator, with a factor of 100. For example, dissolving 5 g of solute in 100 mL of solution gives (5 g / 100 mL) × 100 = 5% m/v. Using solvent mass or a different volume unit would not match the conventional definition without extra conversions, so the form with grams of solute per milliliter of solution multiplied by 100 is the standard.

Mass/volume percentage tells you how much solute, by mass, is present in a given volume of solution. The standard way to express this is to take the mass of the solute in grams and divide by the volume of the entire solution in milliliters, then multiply by 100 to get a percent. This is why the formula uses grams of solute in the numerator and milliliters of solution in the denominator, with a factor of 100.

For example, dissolving 5 g of solute in 100 mL of solution gives (5 g / 100 mL) × 100 = 5% m/v. Using solvent mass or a different volume unit would not match the conventional definition without extra conversions, so the form with grams of solute per milliliter of solution multiplied by 100 is the standard.