1 / 8

Aqueous Solutions

Aqueous Solutions. Write what is in the purple boxes. Ionic Equations. When a soluble substance is dissolved in water, the substance often breaks into ions. This solution is said to be an aqueous solution. Pb(NO 3 ) 2 (aq)  Pb 2+ (aq) + 2NO 3 - (aq) NaI (aq)  Na + (aq) + I - (aq).

aaron-velazquez
Download Presentation

Aqueous Solutions

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. Aqueous Solutions Write what is in the purple boxes

  2. Ionic Equations • When a soluble substance is dissolved in water, the substance often breaks into ions. This solution is said to be an aqueous solution. • Pb(NO3)2(aq) Pb2+(aq) + 2NO3-(aq) • NaI(aq)  Na+(aq) + I-(aq) An aqueous solution is ions dissolved in water

  3. Ionic Equations • Consider the reaction… • Pb(NO3)2(aq) + 2NaI(aq) PbI2(s) + 2NaNO3(aq) • What is really going on is… • Pb2+ + 2NO3- + 2Na+ + 2I- PbI2(s) + 2Na+ + 2NO3- • Note that the Na+ ion and the NO3- ion are not reacting. They are said to be spectator ions.

  4. Net Ionic Equations • It is often useful to write an equation showing only the species that are actually reacting. This is called a net ionic equation. It does not show the spectator ions. Pb2+ + NO3- + Na+ + 2I- PbI2(s) + Na+ + NO3- becomes…. Pb2+(aq) + 2I-(aq) PbI2(s)

  5. Precipitates • The solid formed from mixing two aqueous solutions is called the precipitate

  6. To predict precipitates, use the Precipitation Diagram A solid box means a solid forms

  7. Examples • NaOH(aq) + Cu(NO3)2(aq) • Na3PO4(aq) + Fe(NO3)3(aq) • MgSO4(aq) + AgNO3(aq) • KOH(aq) + NaNO3(aq)

More Related