Lesson 4: Acid-Base Reactions

Neutralisation reactions

When an acid and base reaction together they neutralise (pH moves towards 7)
This follows the general formula:

Acid+Base->Salt + Water

For Example

H2So4+NaOH ->Na2So4+H20

Acid-base reactions in the body

In your bodies acid and base react in different ways to allow your body to function.

In the digestive tract your stomach has a pH of around 0-3.

If the contents was released into your intestines they would disolve from the high pH.

To stop this your liver makes something called bile which has a pH of 8, this gets mixed in with stomach contents in a neutralisation reaction.