Question

An aqueous soln of na2so4 is neutral whereas na2co3 is basic why?

Answer 1

In the aqueous solution of Sodium carbonate there exist sodium ions and carbonate ions. Na2CO3 + H2O →2Na+ + CO3-2 In the aqueous solution of Sodium sulphate there exist sodium ions and sulphate ions.Na2SO4 + H2O →2Na+ + SO4-2 In aqueous solution of sodium sulphate there exists strong Sodium ions and strong sulphate ions, thus the resultant solution becomes neutral.Where as in the aqueous solution of sodium carbonate there exist strong sodium ions and weak carbonate ions. Thus the solution becomes basic, as the basic nature of the solution is more than acidic nature of solution.