Which relationship describes the connection between moles, concentration, and volume?

The correct choice demonstrates the relationship between moles, concentration, and volume through the equation n = Conc × Vol. In this equation:

• n represents the number of moles of solute.

• Conc indicates the concentration of the solution, typically expressed in moles per liter (mol/L).

• Vol signifies the volume of the solution, usually measured in liters (L).

This relationship shows that the number of moles of a solute is directly proportional to both its concentration and the volume of the solution it occupies. Essentially, if you increase either the concentration or the volume while keeping the other constant, the total number of moles will increase.

For instance, if you have a solution with a concentration of 2 mol/L and a volume of 3 L, using this equation, you can calculate the number of moles:

n = 2 mol/L × 3 L = 6 moles.

This fundamental relationship is crucial in various applications in chemistry, such as preparing solutions and performing stoichiometric calculations.