The density of a 16.0 mass % solution of sulfuric acid in water is 1.1094 g/mL at 25.0 °C. What is the molarity of the solution?

Key Concepts

Density

Density is defined as mass per unit volume, typically expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³). In this context, the density of the sulfuric acid solution allows us to relate the mass of the solution to its volume, which is essential for calculating molarity.

Molarity

Molarity is a measure of concentration defined as the number of moles of solute per liter of solution (mol/L). To find the molarity of the sulfuric acid solution, we need to determine the number of moles of sulfuric acid present in a given volume of the solution, which requires knowledge of the solution's density and the mass percentage.

Mass Percent

Mass percent is a way of expressing the concentration of a solute in a solution, calculated as the mass of the solute divided by the total mass of the solution, multiplied by 100. In this case, the 16.0 mass % sulfuric acid indicates that there are 16 grams of sulfuric acid in every 100 grams of the solution, which is crucial for determining the number of moles of solute.