Answer:
10.5
Step-by-step explanation:
The pH can simply be obtained by doing the following:
pH + pOH = 14
pOH from the question = 3.5
pH + 3.5 = 14
Collect like terms as shown below:
pH = 14 — 3.5
pH = 10.5
From the calculations above, the pH of the solution is 10.5