pH, pOH, [H+] and [OH-]

This page is a drill and practice exercise in basic pH calculations. When you press "New Problem" a value will appear in one of the windows. You must properly fill in the other three windows. Pressing "Submit" checks your answer and returns the result in the second table. If you get a problem incorrect, you should retry it until it is correct. Use the "e" notation to enter numbers in scientific notation:


  • Use TAB to move between cells
  • Use "e" notation for scientific notation: 1.2*10-3 would be entered 1.2e-3
  • When your answers are checked, any incorrect values will be cleared so that they can be corrected.
  • Pressing the "Show Answer" will cause the correct answer to appear and you will no longer be able submit an answer for that problem.



Results Total Correct