Question

Show that an aqueous solution with a pH of 5 has a hydroxide ion
concentration of 1×10^9M​

Answer 1

Step-by-step explanation:

pH + pOH = 14

5 + pOH = 14

pOH = 9

pOH = -log([OH⁻])

9 = -log([OH⁻])

-9 = log([OH⁻])

1×10⁻⁹ = [OH⁻]