Class Blog - November 1st, 2013

On the worksheet that was assigned for homework, you must write the net ionic equation as well as the molecular (completely balanced) equation. 

http://en.wikipedia.org/wiki/Solubility_table
(After a 10 minute discussion, we also successfully established that Wikipedia can be trusted mostly...) 

For a reaction to happen, one of the ions must be insoluble. 

• For the molecular equation, don't add charges.
• For the net ionic equation, add charges. 
• For the complete ionic equation, add charges.

-If you need help with the difference between net ionic equations and complete ionic equations, this site may help:
http://www.occc.edu/kmbailey/chem1115tutorials/Net_Ionic_Eqns.htm

We also discussed the solubility rules (which can be found on Solubility of Common Compounds homework worksheet. 

Sodium oxide reacts violently to form sodium hydroxide. This means that sodium oxide is not soluble. Potassium oxide also reacts to form potassium oxide.

We also got a graph of the solubility of sodium acetate. 

The process of making it soluble is very precarious because it must be a certain temperature and a certain saturation so that it will have enough water molecules to make it soluble.  

Next we went to the Solubility Curve Practice Problems worksheet (which we received before today). We noticed that

• The lines that were solid went up.
• The lines that were gases went down. 

HW:

-Solubility Curve Practice Problem Sheets

NEXT SCRIBE: Frankie Sulejmani