Page 4 - 1. MIND MAP- ( CH-3 FULL CHAPTER)

pH of a solution is the
+
power of [H ]

pH solution is known
pH is measured using a as Universal Indicator
pH scale which ranges & is a mixture of
from 0-14 various dyes.

When- When-
*pH=0 - Strong Acid *pH=0-Deep red/pink
*pH=4/5- Mild acid *ph=4/5-Orange
*ph=7- Neutral *pH=7-Green
*pH=8/9- Mild base *pH=8/9-Greenish blue
*pH=14- Strong base
*pH=Deep blue

pH in every day life

1. pH of- 3. *pH of Saliva=7.4
*Acid Rain= 5.6 2. *pH of Stomach is * Tooth Decay-
* Living Organisms below 7.0 as it When pH of mouth
range from-7.0- secretes HCl. goes below 5.5
7.81. *In case of *Cure- Brush teeth
indigestion more of
4. *pH of Bee sting & HCl is secreted. So twice daily with a
Basic tooth paste.
Nettle leaves= 5.0 causes Acidity. *Tooth Enamle is
* Acid present in * Cure- Use Antacid made up of the
them- like Baking Soda. hardest chemical-
Methanoic/Formic
Acid Cure- Apply Calcium Phosphate.
a mild base like Baking
Soda.

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