An aqueous NaCl solution is made using 112 g of NaCl diluted to a total solution volume of 1.00 L. Calculate the mass percent of the solution. (Assume a density of 1.08 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 measurement is crucial for understanding how much of a substance is present in a given amount of solution.

Density of a Solution

Density is defined as mass per unit volume and is an important property of solutions. In this context, the density of the NaCl solution (1.08 g/mL) allows us to convert the volume of the solution into mass. This conversion is essential for calculating the total mass of the solution, which is needed to determine the mass percent.

Dilution and Solution Preparation

Dilution refers to the process of reducing the concentration of a solute in a solution, typically by adding more solvent. In this problem, 112 g of NaCl is dissolved in enough water to make a total volume of 1.00 L. Understanding how to prepare solutions and the effects of dilution is fundamental in chemistry, especially when calculating concentrations and mass percentages.