pH and pOH Practice
8 problems · instant feedback · full explanations
pH compresses a huge concentration range into a small scale. These eight problems drill pH and pOH calculations for strong acids and bases, with the logarithm steps shown explicitly.
Q1.
What is the pH of 0.010 M HCl?
Numerical answer · Easy
Q2.
What is the pH of 0.0010 M NaOH at 25 C?
Numerical answer · Easy
Q3.
A solution with pH less than 7 is:
Multiple choice · Beginner
Q4.
Each one-unit change in pH represents a tenfold change in hydrogen ion concentration.
True / False · Easy
Q5.
A solution has [H+] = 2.5 x 10^-4 M. What is its pH?
Numerical answer · Medium
Q6.
At 25 C, pH + pOH equals:
Multiple choice · Easy
Q7.
A solution of pH 6 is ten times more acidic than a solution of pH 7.
True / False · Easy
Q8.
What is [H+] in a solution of pH 4.30?
Numerical answer (M) · Medium