Question

How is a mole related to concentration?

the volume of particles of solute in a solution is measured in moles
the number of particles of solute in a solution is measured in moles
the saturation point of a solution is measured in moles
the mass of the solute in a solution is measured in moles

Answer 1

A mole is a fundamental unit in chemistry that relates to the amount of substance, and it plays a crucial role in understanding the concentration of a solution. Concentration typically represents the amount of solute present in a given volume of solution.

Out of the options provided, the most accurate relationship is:

**the number of particles of solute in a solution is measured in moles.**

This means that when you know the number of moles of solute, you can calculate the concentration (usually expressed in moles per liter, M) by dividing the number of moles of solute by the volume of the solution in liters.

The other statements are not fundamentally correct in the context of how moles relate to concentration:

- The volume of particles of solute is not typically measured in moles; instead, moles are independent of volume.
- The saturation point of a solution is related to the maximum concentration but is not directly measured in moles.
- The mass of the solute can be converted to moles using molar mass, but concentration itself is not directly expressed as mass.

Thus, the connection between moles and concentration is primarily through the number of particles of solute.