Question

What is the `pH` of an aqueous solution of sodium carbonate?

Answer 1

Sodium carbonate gives a slightly basic aqueous solution...........

Explanation:

We interrogate the equilibrium:

`CO_3^(2-) + H_2O(l) rightleftharpoons HCO_3^(-) +HO^-`

As bases go, carbonate ion is fairly weak. Nevertheless a solution of sodium carbonate would cause hydrolysis, and give a `pH>7`, and thus a basic solution.