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

3 Answers
anor277
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*g*L^-1# at standard temperature.

Meave60
Feb 27, 2018

Yes.

Explanation:

If you consult a table of solubility rules, like the one below, you will see that sodium sulfate #("Na"_2"SO"_4")# is soluble in water.

![http://highered.mheducation.com/olcweb/cgi/pluginpop.cgi

Kai · Stefan V.
Feb 27, 2018

Yes, #Na_2SO_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.

![http://morgantchs.weebly.com/http://solubility-rules-simple.html](https://useruploads.socratic.org/5QkpjrzfTOW2RV6ZQsgz_647046_orig.png)

Higher number rules supersede. #Na_2SO_4# contains #Na^+# ions, and alkali metal ions are soluble, according to rule no. 2. So, we know that sodium sulfate is soluble.

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