Question

What is the ph of a solution of base with a 0.051 M concentration of hydroxide ions

Answer 1

12.7.

Step-by-step explanation:

∵ pOH = - log[OH⁻].

[OH⁻] = 0.051 M.

∴ pOH = - log[OH⁻] = - log(0.051 M) = 1.29.

∵ pH + pOH = 14.

∴ pH = 14 - pOH = 14 - 1.292 = 12.7.