# What is a magnesium alkoxide?

Dec 19, 2016

A magnesium alkoxide is the magnesium salt of an alcohol.

#### Explanation:

An alkoxide ion $\text{RO"^"-}$ is the conjugate base of an alcohol ("ROH"), where $\text{R}$ is any alkyl group.

underbrace("ROH")_color(red)("acid") + "H"_2"O" ⇌ underbrace("RO"^"-")_color(red)("conjugate base") + "H"_3"O"^"+"

The general formula for a salt is ${\text{M"_text(a)"X}}_{\textrm{b}}$, where $\text{M}$ is the metal cation, $\text{X}$ is the anion, and $\text{a}$ and $\text{b}$ are integers.

Magnesium ion is ${\text{Mg}}^{2 +}$, and alkoxide is $\text{RO"^"-}$.

∴ The formula for a magnesium alkoxide is ${\text{Mg(OR)}}_{2}$.