The pH scale measures how
acidic or basic a substance is.
The pH scale ranges from
0 to 14.
A pH of 7 is
neutral
A pH less than 7 is
acidic
A pH greater than 7 is
basic.
The pH scale is (blank) and as a result, each whole pH value
below 7 is ten times more acidic than the next high value.
logarithmic
Measurement of pH
1. pH paper
2. Universal Indicator
3. pH Meter
Methyl orange acid color
Red
Methyl Red
Red
Bromothymol
Blue
Yellow
Phenol Red
Yellow
Phenolphthalein
Colorless
Thymol Blue
Red
Alizarin Yellow
Yellow
Methyl orange base color
Yellow
Methyl Red base
Yellow