pH = -lg[H+]
[H+] = 10—pH
[H+] = 10-12,5 = 3,16·10-13М
pOH = 14 – pH
pOH = 14 –12,5 = 1,5
pOH = -lg [OH—]
[OH—] = 10—pOH
[OH—] = 10-1,5 = 3,16·10-2 М
pH = -lg[H+]
[H+] = 10—pH
[H+] = 10-12,5 = 3,16·10-13М
pOH = 14 – pH
pOH = 14 –12,5 = 1,5
pOH = -lg [OH—]
[OH—] = 10—pOH
[OH—] = 10-1,5 = 3,16·10-2 М