1 / 6

Ionic Equations

Ionic Equations. Deriving TOTAL and NET ionic equations from molecular equations. Molecular equations. Show all substances as elements or compounds using appropriate formulae Identify as solid (s), gas (g), liquid (l) or dissolved (aq) In these equations essential to show states

chiquita-kent
Download Presentation

Ionic Equations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ionic Equations Deriving TOTAL and NET ionic equations from molecular equations

  2. Molecular equations • Show all substances as elements or compounds using appropriate formulae • Identify as solid (s), gas (g), liquid (l) or dissolved (aq) • In these equations essential to show states Pb(NO3)2(aq) + 2KI(aq) = 2KNO3(aq) + PbI2(s)

  3. Total ionic equations • For all dissolved substances show as constituent ions (except weak acids or other weak electrolytes) • All others show as molecular formula Pb(NO3)2(aq) + 2KI(aq) = 2KNO3(aq) + PbI2(s) Pb2+(aq) + 2NO3-(aq) + 2K+(aq) + 2I-(aq) = 2K+(aq) + 2NO3-(aq) + PbI2(s)

  4. Net ionic equations • Spectator ions are those ions that do not undergo a change; they do not participate in the chemical change and are the same on both sides of the equation • Remove all spectator ions from the equation Pb2+(aq) + 2NO3-(aq) + 2K+(aq) + 2I-(aq) = 2K+(aq) + 2NO3-(aq) + PbI2(s)

  5. Net ionic equations Pb2+(aq) + 2I-(aq) = PbI2(s) • Mass and charge must still balance, although overall charge may not be neutral in a net ionic equation

  6. Strong electrolytes are ionized, weak electrolytes are not

More Related