Question

considere uma solução cuja [H+] = 10-1 mol L-1. Determine seus pH, [OH] e pOH

Answer 1

I) pH:

pH = -log[H⁺]

pH = -1 . log 0,1

pH = -1 . -1

pH = 1

II) pOH:

pH + pOH = 14

1 + pOH = 14

pOH = 14 - 1

pOH = 13

III) [OH⁻]:

pOH = -log[OH⁻]

13 = -1 . log[OH⁻]

log[OH⁻] = -13

[OH-] = 10⁻¹³ mol/L