Question

The equation [M] = mol/L represents which concentration measurement?

A. molarity
B. molality
C. parts per million

Answer 1

The correct answer is A. molarity

Step-by-step explanation:

Solutions are homogeneous mixtures (that is, their properties are uniform) of two or more substances. The substance that is found in the highest proportion is called the solvent, while the substance or substances that are in the smallest proportion are called solute.

The properties of a solution depend not only on the nature of its components but also on its concentrations.

The Molarity (M) or Molar Concentration is the number of moles of solute that are dissolved in a given volume.

The Molarity of a solution is expressed as:

`Molarity (M)=(number of moles of solute)/(Volume)`

Molarity is expressed in units
`(moles)/(liter)`.

Answer 2

The equation represented above is that of the molarity. In other words, molarity is the quotient obtained when the number of moles of the solute is divided by the volume of the solution in liters. The answer to this item is letter A.