Which is a way to express concentration of a solution?
parts per billion
moles
molar mass
force per square meter

Answer;

-Parts per billion

Explanation;

-There are several different ways to quantitatively describe the concentration of a solution.

-For example, molarity is a useful way to describe solution concentrations for reactions that are carried out in solution. The concentration of a solution can also be described by its molality (m), the number of moles of solute per kilogram of solvent:

Molarity = moles solute/Kilogram solvent

-Another common way of describing concentration is as the ratio of the mass of the solute to the total mass of the solution. The result can be expressed as mass percentage, parts per million (ppm), or parts per billion (ppb):

Mass percentage = (mass of solute/mass of solution) × 100

Parts per million (ppm) = (mass of solute/mass of solution) × 10^6

Parts per billion (ppb) = (mass of solute/mass of solution) × 10^9

parts per billion

Explanation:

just aced test on edg

hope this helps!!!

force tends to be low and long diustance masses are high