5) After performing a routine laboratory synthesis, a chemist was left with more waste product than desired. She wanted to check the pH of the substance to properly dispose
of the waste, but her pH meter was broken, and the lab had run out of litmus paper.
However, she knew that based on her calculations, the solution likely had a hydrogen
ion, H, concentration of 8.7 x 10-5 M. What is the pH of this solution ? Choose the range
of pH values that contains the correct pH.
A) 1-3.9
B) 4-7.9
C) 8-11.9
D) 12-14