Molality (m) is defined as the number of moles of solute per kilogram of solvent. It is expressed in units of moles per kilogram (mol/kg) or molality (m). Molality is often used in situations where the volume of the solution changes with temperature, such as in thermodynamic calculations.
\[m = rac{M}{ ho - (M imes rac{MW_{solute}}{1000})}\] mcr to mcd
A 3 m solution of NaCl has a density of 1.08 g/mL. What is the molarity of the solution? Molality (m) is defined as the number of
\[m = rac{M imes 1000}{1000 - (M imes MW_{solute} imes ho)}\] mcr to mcd
\[m pprox 2.04\]
First, we need to calculate the molecular weight of NaCl: