The pH scale is useful in converting very small concentration values into more manageable numbers.
Concept #1: With concentrations less than 1.0 M the pH scale normally ranges from 1 to 14.
Example #1: What is the hydroxide ion and hydronium ion concentration of a solution with a pH equal to 5.88?
Example #2: Of the following options, a solution with which pH would have the greatest concentration of hydronium ions?
Example #3: What mass of HBr should a student mix into 250.00 mL of water to make a solution with a pH = 3.850?
a) 0.00286 g
b) 0.0547 g
c) 1.41 x 10-4 g
d) 0.0114 g
Practice: What is the hydronium ion concentration in a solution having a pOH of 3.62?