Respuesta :

TSO
pOH = -log[OH-]
pH + pOH = 14 (at 25 degrees celsius)

pOH = -log(5.4*10^-4) = 3.27 

pH = 14 - 3.27 = 10.73

The pH of a solution with a hydroxide ion concentration of 5.4*10^-4 M is 10.73.