If you had a 1 M solution of a strong base what would be its pH?
A)1
B)6
C)7
D)8
E)13

Question

Quizplus · Accepted Answer

A strong base is a compound that completely dissociates in water to form hydroxide ions (OH-). A 1 M solution of a strong base would have a concentration of 1 M OH-. Using the formula for the pOH of a solution, we find that pOH = -log[OH-]. Thus, pOH = -log(1) = 0. 
To find the pH of the solution, we use the formula pH + pOH = 14. 
pH + 0 = 14 
pH = 14 
Therefore, the pH of a 1 M solution of a strong base would be 14 - 0 = 14. 
Note that a pH of 14 is very basic, so the answer is E) 13.

If You Had a 1 M Solution of a Strong