1 / 7

Precipitation Reactions

Precipitation Reactions. Double Replacement Reactions. The ions of two compounds exchange places in an aqueous solution to form two new compounds. AX + BY  AY + BX. One of the compounds formed is usually a

cyrah
Download Presentation

Precipitation Reactions

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. Precipitation Reactions

  2. Double Replacement Reactions The ions of two compounds exchange places in an aqueous solution to form two new compounds. AX + BY  AY + BX One of the compounds formed is usually a precipitate (an insoluble solid) or a molecular compound, usually water.

  3. Double replacement forming a precipitate… Lead(II) nitrate + potassium iodide  lead(II) iodide + potassium nitrate Double replacement (ionic) equation Pb(NO3)2(aq) + 2KI(aq)  PbI2(s) + 2KNO3(aq) Complete ionic equation shows compounds as aqueous ions Pb2+(aq) + 2 NO3-(aq) + 2 K+(aq) +2 I-(aq)  PbI2(s) + 2K+(aq) + 2 NO3-(aq) Net ionic equation eliminates the spectator ions Pb2+(aq) + 2 I-(aq)  PbI2(s)

  4. Solubility Rules for Chemistry All sodium, potassium, ammonium, and nitrate salts are soluble in water. Memorisationof other “solubility rules” is beyond the scope of this course, you will always be given a solubility table for your Chemistry test & exam.

  5. Solubility Rules – Mostly Soluble

  6. Solubility Rules – Mostly Insoluble

  7. Solubility Chart:Common saltsat 25C S = Soluble I = Insoluble P = Partially Soluble

More Related