pH Notes

What is pH?

pH is the measure ofthe amount of free H(H+) in a solution.

pH Scale

Measured 1-14

1 = Highly acidic14 = Highly basic

pH ExtremesAcid- an acidic solutionhas a high amount of free H+

Base- a basic solutionhas more OH- than H+

Water

Water has a pH of 7

NEUTRAL

Means it has equalparts H+ and OH-

pH Implications- Can help break molecules

down- Can change the shape

of molecules- Can be used to

control body processes

BuffersWeak acids and bases are used inyour body as chemicalsthat minimize drasticchanges in body pH

Why?

Acids + Bases =???NaOH + HCl _______ + ________