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| PH
OF DIFFERENT SUBSTANCES: Apple : 2.9-3.3 pure water : 7 butter : 6.1-6.4 milk : 6.3-6.6 wheat flour : 5.5-6.5 cola : 3 dates : 6.2-6.4 tomato juice : 4. |
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|
STRONG
ACID
|
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| An
acid which ionize in aqueous solution to large extent is called "strong
acid". Example: HCl, H2SO4, HNO3 |
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WEAK
ACID
|
STRONG ACID - WEAK ACID - TYPES OF SALT - ACIDIC SALT - BASIC SALT - NEUTRAL SALT - TITRATION | ||
| An
acid which ionizes in aqueous solution to smaller extent, is called "weak
acid". Example: CH3COOH, oxalic acid (COOH-COOH), formic acid (HCOOH). |
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HYDROLYSIS
|
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| Reaction
of a substance with water in which pH of water is changed is
called "Hydrolysis". In hydrolysis bond between
H and O in water are broken down. Hydrolysis is reverse reaction of neutralization. For latest information , free computer courses and high impact notes visit : www.citycollegiate.com |
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|
NH4Cl
+ H2O è NH4OH
+ HCl
|
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|
TYPES
OF SALT
|
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| There are three types of salts | |||
| (1)
Acidic salt. (2) Basic salt. (3) Neutral salt. |
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|
ACIDIC
SALT
|
STRONG ACID - WEAK ACID - TYPES OF SALT - ACIDIC SALT - BASIC SALT - NEUTRAL SALT - TITRATION | ||
| Salt
formed by the reaction between strong acid and weak base is called "Acidic
salt" . Example: NH4Cl, CuSO4 |
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|
weak
base + strong acid è acidic salt + water
NH4OH + HCl è NH4Cl + H2O |
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BASIC
SALT
|
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| Salt
formed by the reaction between strong base and weak acid is called " basic
salt". . Example: CH3COONa, Na2S |
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|
strong
base + weak acid è basic
salt + water
2NaOH + H2CO3 è Na2CO3 + 2H2O |
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NEUTRAL
SALT
|
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| Salt
formed by the reaction between strong acid and strong base is called "neutral
salt". Example: NaCl, KNO3 |
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|
strong
base +strong acid è neutral
salt + water
NaOH + HCl è NaCl + H2O |
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| For latest information , free computer courses and high impact notes visit : www.citycollegiate.com | |||