# Calculating the density of a saturated salt solution

Is there a way to calculate the density of a saturated salt solution from the solubility limits or does it have to be experimentally determined?

First instinct, is to add the mass of the salt to mass of the water e.g. a solubility of $\pu{80 g}$ of salt in $\pu{100 mL}$ would have a solution density of $\pu{180 g/100 mL = 1.8 g/mL}$. However, it seems the salt should affect the volume of the solution. What additional information is needed or does this quantity just have to be empirically determined?

• You can't calculate that. – Ivan Neretin Jan 24 '18 at 18:39
• This is the sort of thing where just measuring it is far easier than trying to calculate it. – matt_black Sep 23 '18 at 10:58