Class Notes (1,100,000)
CA (630,000)
Langara (1,000)
CHEM (10)
Lecture

CHEM 1114 Lecture Notes - Amphoterism, Order Of Merit, Covalent Bond

by

Department
Chemistry
Course Code
CHEM 1114
Professor
K.Sveinson

This preview shows half of the first page. to view the full 2 pages of the document.
Metal and Non-Metal Hydroxides
Consider the Hydroxide M-O-H (where M is any element) . It is formed as follows:
MO +H2O M-O-H (not balanced, depends on element M)
- if M has little desire of electrons (low electro negativity and low ionization energy <energy required to
remove 1 electron), M-O-H becomes BASIC F= 4.0 and Fr= 0.7
In this case, M is usually a metallic element *except Al(OH)3 , Fe(OH)3,Cr(OH)3
M-O-H M+ + OH-
If M has a strong desire for electrons (high electro negativity and high ionization energy), M-O-H
becomes ACIDIC
If M does not have a strong desire for electrons (high electro negativity and high ionization energy), M-
O-H becomes BASIC
In this case, M is usually a non-metallic element (covalent oxides)
M-O-H MO- + H+
Some M-O-H compounds can act as both acids and bases. We say that these compounds are amphiprotic
You're Reading a Preview

Unlock to view full version