Mini-lecture: how to use the solubility rules to assign phases
Mini-lecture: What does soluble really mean?
Mini-lecture: writing net ionic equations
Solubility rules
Tricks for remembering solubility rules
Solubility and Net Ionic Equations
Overview
This module includes solubility rules, how to use the solubility rules, calculating moles of ions from grams of compound, and how to write Net Ionic Equations.
Solubility: definition and rules
Before we can write a net ionic equation, we need to learn what solubility means and what the rules are.
Certain ionic compounds are soluble in water, but not all of them are. The YouTube video on solubility rules is a fun way to remember the rules.
Once we know the rules, let's see what it means to a chemist: soluble ionic compounds means breaking apart into ions.
Writing Total Molecular, Total Ionic, and Net Ionic Equations
I had to cut out the solubility chart that I used in the video since it was from our textbook.
Now that we can:
1- Predict products of exchange reactions
2- Identify soluble (aq) and insoluble (s)
Let's practice applying these skills to writing
Total Molecular Equations (balanced reaction with all the neutral compounds)
Total Ionic Equations (Balanced reaction with all (aq) compounds split into their ions)
Net Ionic Equations (cancel out what is the same on both sides of the Total Ionic Equation)
Moles of Ions in Solution
Related to solubility, is a question about moles of ions in solution.
We have to set up conversions here- moles of compound to moles of ions.
Check out the mini-lecture for an example.