Respuesta :
[tex]\boxed{\sf Molality=\dfrac{Moles\:of\:solute}{Mass\:of\: solvent\:in\;kg}}[/tex]
- Moles=0.25
- Mass=2.5kg
[tex]\\ \rm\Rrightarrow Molality=\dfrac{0.25}{2.5}=0.1m[/tex]
[tex]\boxed{\sf Molality=\dfrac{Moles\:of\:solute}{Mass\:of\: solvent\:in\;kg}}[/tex]
[tex]\\ \rm\Rrightarrow Molality=\dfrac{0.25}{2.5}=0.1m[/tex]