Calculate the OH- and H3O+ concentrations of a solution that has a pH of 12.11. Is the solution acidic, basic, or neutral?

oh-and-h3o

#1

Calculate the OH- and H3O+ concentrations of a solution that has a pH of 12.11. Is the solution acidic, basic, or neutral?

Answer:

pH = -log[H3O+]
H3O+ = 10^-pH =10^-12.11=7.76x10^-13
To calculate OH- is 14=pH+POH-
14=12.11+POH-
POH-=1.89
OH-=10^-1.89=0.01288
Since the pH of the solution is greater than 7 it is basic