The solubility of sodium acetate is listed in reference books as 123 g/10.0 ml H2O @ 20° C. What do these numbers mean in terms of a saturated solution? Be VERY specific in your explanation.

Question

Avery Adams · Accepted Answer

A #"saturated solution"# is a solution that contains an amount of solute EQUAL....

A #"saturated solution"# is a solution that contains an amount of solute EQUAL to that amount which would be in equilibrium with undissolved solute. A temperature is specified because a hot solution can normally hold more solute than a cold one.

See here and links....

For the given sample....we gots...

#Na^(+)""^(-)OAc(s) stackrel(H_2O)rarrNa^(+) + ""^(-)OAc#

..for which we could write a solubility expression...

#K_"sp"=[Na^+][""^(-)OAc]=??#

Now #S_"molar solubility"#, #[Na^+""^(-)OAc]=((123*g)/(82.03*g*mol^-1))/(100xx10^3*L)=S_"molar solubility of sodium acetate"#..the which is large, and this amount of solute specifies #"a saturated solution...."#

Serenity Allen · Answer

undefined The numbers "123 g/10.0 ml H2O @ 20°C" represent the solubility of sodium acetate in water at a specific temperature, which is 20°C. This notation indicates the maximum amount of sodium acetate that can dissolve in 10.0 milliliters (ml) of water at that temperature, resulting in a saturated solution.

Specifically:

- "123 g" represents the maximum mass of sodium acetate that can dissolve in the given volume of water.
  
- "10.0 ml H2O" indicates the volume of water used in the experiment or measurement.
  
- "@ 20°C" specifies the temperature at which the solubility measurement was made. Temperature can affect the solubility of a substance, so it's essential to note the temperature when reporting solubility data.

Therefore, the statement means that if you were to dissolve 123 grams of sodium acetate in precisely 10.0 milliliters of water at 20°C, the resulting solution would be saturated. Any additional sodium acetate added beyond this point would not dissolve and would remain as solid particles at the bottom of the container, indicating that the solution is saturated at that temperature and volume of water.