๐Ÿ’intro to chemistry review

key term - Neutral

Definition

A neutral solution has a pH of 7, meaning it is neither acidic nor basic. It contains equal concentrations of hydrogen ions (H\(^+\)) and hydroxide ions (OH\(^-\)).

5 Must Know Facts For Your Next Test

  1. Pure water at 25ยฐC is neutral with a pH of exactly 7.
  2. In a neutral solution, the concentration of H\(^+\) ions equals the concentration of OH\(^-\) ions, both being $1 \times 10^{-7}$ M.
  3. Neutrality can be disturbed by adding acids or bases which shift the pH away from 7.
  4. The concept of neutrality is central to understanding acid-base equilibria and buffer solutions.
  5. At temperatures other than 25ยฐC, the value for neutral pH can shift slightly due to changes in the ion product of water (K\(_w\)).

Review Questions