Question

What is an expression of molality?

Answer 1

`m` = moles of `solute` `/` kilogram of `solvent`

Explanation:

Morality is defined as number of moles of solute dissolved per kilogram of solvent. For example when `58.5 g` of `NaCl` is dissolved in one kilogram of water the resulting solution would be one molal or 1m `NaCl` .