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ByI Gd Ngr Dharma Setyawan,

S.PdDrs. Hariyanto

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SODIUM CHLORIDE SOLUTION

ACETIC ACID SOLUTION

SUGAR SOLUTION

DATA OF OBSERVATION RESULT

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DATA OF OBSERVATION

NO SOLUTIONCHEMICAL BONDING

OBSERVATION ELECTRICAL

CONDUCTIVITY

1. Sodium chloride (NaCl)

Ionic

Bulb lights brightly Bubble of gas is produced

Electrolyte

2.Acetic acid (CH3COOH) Covalent Polar

Bulb lights but it is not so bright Bubble of gas is produced

Electrolyte

3.Sugar

(C12H22O11)Covalent Non

Polar

Bulb does not light No bubble of gas

Non Electrolyte

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Classification of solution based on the electrical conductivity

ELECTROLYTE NON ELECTROLYTE

1.

2.

3.

It can conduct the electricity

It will be ionized

Bulb lights brightly or not so brightBubble of gas is produced

1.

2.

3.

It cannot conduct the electricity

It will not be ionized

Bulb does not lightBubble of gas is not produced

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Classification of solution based on the electrical conductivity

Solution

PROPERTIES AND

OBSERVATION RESULT

EXAMPLE OF SUBSTANCE

IONIZATION

Strong Electrolyte

- Totally ionized - Conduct electricity current- Bulb lights brightly- produce bubble of gas

NaCl, HCl,NaOH, H2SO4, dan KCl

NaCl Na+ + Cl- NaOH Na+ + OH-

H2SO4 H+ + SO4-

KCl K+ + Cl-

Weak

Electrolyte

- Partially ionized - Conduct electricity current - Bulb lights but not so bright - produce bubble of gas

CH3COOH, NH4OH,

HCN, dan Al(OH)3 CH3COOH H+ + CH3COO- HCN H+ + CN-

Al(OH)3 Al3+ + 3OH-

Non Electrolyte

- Not ionized - Not conduct electricity current- bulb does not light - not produce bubble of gas

C6H12O6, C12H22O11,CO(NH2)2, dan C2H5OH

C6H12O6

C12H22O11

CO(NH2)2

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THE ELECTRICAL CONDUCTIVITY OF IONIC COMPOUND

NaCl is ionic compound, it will be ionized totally

NaCl (s) + water Na+(aq) + Cl-

(aq)

NaCl

Water Process

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THE ELECTRICAL CONDUCTIVITY OF COVALENT

COMPOUND

CH3COOH is a covalent compound (polar molecule), it will be ionized partially in the water

CH3COOH CH3COO H α+α-

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