The pH of the solution is a measure of the acidity of such solution. Acidity is the level of how much acid is present in a mixture and is associated with the concentration of hydronium ions. For pH, it is equal to the negative logarithm of the hydronium ion concentration. We use this to calculate for what was asked.
pH = - log [H+]
2.32 = - log [H+]
[H+] = 4.79x10^-3 M
2 Na + 2 H2O --> 2 NaOH + H2
1.8e-6 this should be the correct answer according to my mass converter.