Question

Select the correct answer.

The presence of which ion will not affect the pH of a solution?

A.
OH-
B.
H3O+
C.
H+
D.
Na+

Answer 1

D. Na+

Step-by-step explanation:

Na+ is the only ion here that is not related to pH. Adding OH- increases pH, and adding H3O+ or H+ (the two are interchangeable) decreases pH.