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What is a base?

What is a base?

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Author: Nathan Lampson
Description:
This lesson will explain what a base is, what the pH of a base is, and give an overview of the general properties of bases.
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Tutorial

 

A base is a substance that increases the OH- ion concentration in a solution.  On the pH scale, a base is a solution with a pH of greater than 7.

 

Properties of bases:

pH > 7

Bitter taste

Feel slippery (soapy) to the touch

Neutralized by acids

Raise the concentration of hydroxide (OH-) ions in a solution