MDCAT Biology MCQ #784

Water undergoes reversible ionization into H+ and OH- ions. At 25 degrees Celsius, what is the concentration of hydrogen ions?

MDCAT Biology MCQ #784

  1. Question 1

    Q1. Water undergoes reversible ionization into H+ and OH- ions. At 25 degrees Celsius, what is the concentration of hydrogen ions?

    • A) 10^-14 mol/L
    • B) 10^-7 mol/L
    • C) 10^-1 mol/L
    • D) 10^-4 mol/L

    Answer: 10^-7 mol/L

    Explanation: At 25 degrees Celsius, the concentration of H+ and OH- ions in pure water is 10^-7 mol/L each.