21.3 Solutions Can Be Acidic, Basic, or Neutrals

pH and Logarithms

pH is the measurement of the acidity of a solution based on the concentration of the hydronium ions in the solution. pH is equal to the minus log of the hydronium ion concentration. Duration: 6:03.

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The pH Scale and Meter

The pH of normal household solutions are discussed. The pH meter is used to show the pH of various solutions. Duration: 5:10.

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