In this video we'll write the correct name for Al2(SO4)3. To write the name for Al2(SO4)3 we’ll use the Periodic Table and follow some simple rules.

Because Al2(SO4)3 has a polyatomic ion we’ll also need to use a table of names for common polyatomic ions, in addition to the Periodic Table.


Common Ion Table: https://breslyn.org/chemistry/naming/resources/common_ion_table.php

---Keys for Naming Ternary Ionic Compounds---

1) Name the metal (the cation) as it appears on the Periodic Table.
Na+ = Sodium Mg2+ = Magnesium Al3+ = Aluminum
2) Find the polyatomic ion on the Common Ion Table and write the name.

Note: It is possible to have two polyatomic ions such as NH4NO3. In this case find and write both names as found on the Common Ion Table.

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For a complete tutorial on naming and formula writing for compounds, like Aluminum sulfate and more, visit:

http://www.breslyn.org/chemistry/naming


Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).