Open links in new tab
  1. Khan Academy | Khan Academy

    Oops. Something went wrong. Please try again. Uh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us.

  2. Introduction to pH (video) | Khan Academy

    The pH scale is used to determine the acidity or basicity (alkalinity) of a substance. Acidic substances have pH values below 7, while basic substances have pH values above 7; neutral substances have a …

  3. The pH scale (video) | 2nd quarter | Khan Academy

    The pH scale is a convenient way to represent the acidity or basicity of a solution. We can calculate the pH of a solution by taking the negative logarithm of the hydronium ion concentration, or pH = -log …

  4. Khan Academy

    Khan Academy ... Khan Academy

  5. Definition of pH (video) | Khan Academy

    The pH is equal to the negative log of the concentration of our hydronium ion, which is 1.5 times 10 to the negative four. Let's get out the calculator and let's do this calculation here.

  6. pH Scale: Acids, bases, pH and buffers (article) | Khan Academy

    The pH scale is used to rank solutions in terms of acidity or basicity (alkalinity). Since the scale is based on pH values, it is logarithmic, meaning that a change of 1 pH unit corresponds to a ten-fold change …

  7. Definition of pH (video) | Ionic equilibrium | Khan Academy

    The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution.

  8. Khan Academy

    Learn about pH, pOH, and the pH scale, their definitions, and calculations for strong acids or bases on Khan Academy.

  9. Khan Academy

    Definitions of pH, pOH, and the pH scale. Calculating the pH of a strong acid or base solution. The relationship between acid strength and the pH of a solution.

  10. Standards Mapping - Texas High School Science | Khan Academy

    CHEM.12E Define pH and calculate the pH of a solution using the hydrogen ion concentration.