# Question #73d8e

##### 1 Answer

#### Explanation:

The **solubility** of sodium chloride in water tells you how many grams of sodium chloride can be added **per** **of water** in order to get a **saturated solution** of sodium chloride at a given temperature.

You know that at **per**

Since a solution is a homogenous mixture, i.e. it has the same composition throughout, you can use the solubility of the salt at this temperature as a **conversion factor** to determine how many grams of water would be needed to make a saturated solution of sodium chloride that contains

#66.5 color(red)(cancel(color(black)("g NaCl"))) * overbrace(("100. g H"_2"O")/(36.0color(red)(cancel(color(black)("g NaCl")))))^(color(blue)("the solubility of the salt at 20"^@"C")) = color(darkgreen)(ul(color(black)("185 g H"_2"O")))#

The answer is rounded to three **sig figs**, the number of sig figs you have for your values.

You can thus say that at **saturated solution** of sodium chloride, which is a solution in which the undissolved solid is **in equilibrium** with the solvated ions, contains **per**