Hydroxide Molecular Weight

The molecular weight of hydroxide is 17.007 g/mol.

Hydroxide (OH-) is molecule containing a hydrogen and oxygen atom held together in a covalent bond.  Hydroxide is commonly used for several purposes medicine (kidney stone prevention and blood preservative) and as a food preservative. The acidity of a concentration of hydroxide can be approximated using a simplified formula. 

The formula for the pH of a concentration of hydroxide is:

pH = 14 + log[OH^-]

where:

• [OH^-] is the hydroxide ion concentration in units of (mol/L)
• pH is acidity measurement