Compare solution A with pH = 4 to solution B with pH = 6.

Question

Quizplus · Accepted Answer

Each change in pH by 1 unit represents a tenfold change in the concentration of hydronium ion. Therefore, a difference of 2 pH units (pH 4 compared to pH 6) represents a 100-fold difference in hydronium ion concentrations. Therefore, the concentration of hydronium ion in solution A is 100 times greater than in solution B. Option A is incorrect since the concentration would need to be 10 times greater for the pH difference to be 1. Option B is incorrect as pH does not directly correlate with buffering capacity. Option D is incorrect since pH can be used to calculate the concentration of both H+ and OH-.

Compare Solution a with PH = 4 to Solution B