pOH of a $1 imes 10^{-9} \mathrm{M}$ aqueous solution of hydronium ion in room temperature will be

Question

pOH of a $1 	imes 10^{-9} \mathrm{M}$ aqueous solution of hydronium ion in room temperature will be

Professor PC Thomas Classes · Answer

[H3O+] = $10^{-9}$. pH = 9. pOH = $14 - 9 = 5$.