What weight of sodium nitrate will separate when a saturated solution contain 50gram of water is cooled from 50c to 30c?
Answers
Solubility:
When the maximum amount of solute is dissolve in the solvent is called solubility. On the basic of solubility the solution are following types:
Saturate solution:
A solution which contains the maximum amount of dissolved solute at the equilibrium is called saturated solution.
Un-saturate solution:
A solution which contains lesser amount of solute as compare to saturated solution. It will be able to dissolver more solute.
Super -Saturate solution:
A solution which contains the more dissolved amount of solute as compare to saturated solution.
Solubility of NaNO3 at 50c= 114 g /100 g H2O
Solubility of NaNO3 at 30c= 96 g /100 g H2O
For saturated solution in 50 g water the amount of present at 50C=
114 g/100 g *50 g
= 57 g
And at 30 C
96 g/100 g*50g
= 48 g NaNo3 in water
So when we cooled from 50 to 30 C; 57-48 g =9.0 g seperate out