Question

Identify the major ionic species present in an aqueous solution of sodium sulfate.

Answer 1

The major  ionic species present  in aqueous  solution of   sodium sulfate  is

2 Na+  and  SO4^2-

explanation

 When  electrolyte  dissolve in water  they  dissociate into ions.

There  are  two type of electrolyte  that is strong  and weak  electrolyte.

Sodium  sulfate  is  a strong  electrolyte and therefore it dissociate completely    into  ions as below

Na2So4 →  2 Na+  (aq)  + So4^2-  (aq)

Answer 2

Answer: The major ionic species present in the solution are sodium and sulfate ions.

Explanation:

Sodium sulfate is an ionic compound because it is formed by the complete transfer of electrons from sodium ions to sulfate ions.

When an ionic compound is dissolved in water, it dissociates into its corresponding ions.

The chemical equation for the ionization of sodium sulfate follows:

$Na_2SO_4(aq.)\rightarrow 2Na^+(aq.)+SO_4^{2-}(aq.)$

By Stoichiometry of the reaction:

1 mole of aqueous solution of sodium sulfate produces 2 moles of sodium ions and 1 mole of sulfate ions.

Hence, the major ionic species present in the solution are sodium and sulfate ions.