# Is "Na"_2"SO"_4" soluble in water?

Feb 27, 2018

My word...

#### Explanation:

Most alkali metal salts are soluble in aqueous solution. Sulfates TEND to be soluble (there are some exceptions that have to be LEARNED).

This site quotes an aqueous solubility of $140 \cdot g \cdot {L}^{-} 1$ at standard temperature.

Feb 27, 2018

Yes.

#### Explanation:

If you consult a table of solubility rules, like the one below, you will see that sodium sulfate $\left(\text{Na"_2"SO"_4}\right)$ is soluble in water.

Feb 27, 2018

Yes, $N {a}_{2} S {O}_{4}$ is soluble in water.

#### Explanation:

To figure out whether a compound is soluble in water, refer to the following list of solubility rules. This set of rules is very important and should be memorized.

Higher number rules supersede. $N {a}_{2} S {O}_{4}$ contains $N {a}^{+}$ ions, and alkali metal ions are soluble, according to rule no. 2. So, we know that sodium sulfate is soluble.