An aqueous KNO3 solution is made using 55.3 g of KNO3 diluted to a total solution volume of 2.00 L. Calculate the mass percent of the solution. (Assume a density of 1.05 g>mL for the solution.)

Key Concepts

Mass Percent

Mass percent is a way of expressing the concentration of a solute in a solution. It is calculated by taking the mass of the solute, dividing it by the total mass of the solution, and then multiplying by 100 to get a percentage. This concept is essential for understanding how much of a particular substance is present in a given amount of solution.

Density

Density is defined as mass per unit volume and is a critical property of substances. In this context, the density of the solution (1.05 g/mL) allows us to convert the volume of the solution into mass, which is necessary for calculating the mass percent. Understanding density helps in determining how much the solute contributes to the overall mass of the solution.

Solution Preparation

Solution preparation involves dissolving a solute in a solvent to create a homogeneous mixture. In this case, KNO3 is the solute, and water is the solvent. Knowing how to prepare solutions and the relationship between mass, volume, and concentration is crucial for accurately calculating properties like mass percent in a solution.