Molality Formula – Equation and Problem Solved with Example

To know the concentration in Chemistry, we need Molality. However, there are a plenty of techniques to express the amount of concentration and one of the popular solutions is Molality. The focus of discussion in this blog post is Molality and the related formula too.

To know the concentration of substance is highly important in Chemistry. And the presence of chemical substances can be felt every where around us like cleaning agents, bleach, mouthwash, shampoo etc have different concentration and they are used for different purposes too.

Chemists are also aware of the concept of concentration when they are in the laboratory. One of the excellent styles to calculate the concentration is Molality. It is given by the symbol small m and defined as the total number of moles in solute per kilograms of solvent. Here, is the Molality formula in chemistry used by the experts –

Molality Formula

\[\ Molality = m =\frac{Moles of Solute}{Kg of Solvent}\]
\[\ m =\frac{Mol}{kg}\]

In a few cases, you have to use more formulas to calculate the Molality. One more formula that is used frequently is related to the density where d = m/v, where m is mass, v is the volume, and d is the density. Or you can say it density triangle to remember.

Next important term to notice here is molar mass where you need to count the number of atoms for each element and find the sum of atomic masses too within an atom for the particular chemical compound. All this information is available in the periodic table too and the molar mass is equal to the sum of total number of atoms or atomic masses of atoms.