Blip

About this episode

The pH of a weak acid is calculated using the approximation technique. When the 5% rule is applied, the approximation is found to be valid, but it is close. using the 5% rule, the value calculated is 4.3%.As the concentration is decreased, the percent dissociation increases, leading to values greater than 5% in these weak acid calculations. Once the 5% threshold is passed, a quadratic equation must be used to solve the problem accurately.

• Category

  Learning

• Release Date

  Dec 6, 2009

• Runtime

  02:46