Wednesday, August 31, 2016

Macam Macam Electrolit Lemah dan Kuat

Macam Macam Electrolit Lemah dan Kuat


1. Elektrolit Kuat

a. Asam kuat

HxZ (aq)-> x H+(aq) + Zx(aq)

Contoh:

• HCl(aq)-> H+(aq) + Cl(aq)

• H2SO4(aq)->2 H+(aq) + SO42–(aq)

• HNO3(aq)-> H+(aq) + NO3(aq)

b. Basa kuat

M(OH)x(aq)-> Mx+(aq) + x OH(aq)

Contoh:

• NaOH(aq)-> Na+(aq) + OH(aq)

• Ba(OH)2(aq)-> Ba2+(aq) + 2 OH(aq)

• Ca(OH)2(aq)-> Ca2+(aq) + 2 OH(aq)

c. Garam

MxZy(aq)-> x My+(aq) + y Zx(aq)

Contoh:

• NaCl(aq)-> Na+(aq) + Cl(aq)

• Na2SO4(aq)->2 Na+(aq) + SO42–(aq)

• Al2(SO4)3(aq)->2 Al3+(aq) + 3SO42–(aq)





2. Elektrolit Lemah

a. Asam lemah

HxZ(aq)  ightleftharpoons x H+(aq) + Zx(aq)

Contoh:

CH3COOH(aq)  ightleftharpoons H+(aq) + CH3COO(aq)

H2SO3(aq)  ightleftharpoons 2 H+(aq) + SO32–(aq)

H3PO4(aq)  ightleftharpoons 3 H+(aq) + PO4(aq)

b. Basa lemah

M(OH)x(aq)  ightleftharpoons Mx+(aq) + x OH(aq)

Contoh:

NH4OH(aq)  ightleftharpoons NH4+(aq) + OH(aq)

Al(OH)3(aq)  ightleftharpoons Al3+(aq) + 3 OH(aq)

Fe(OH)2(aq)  ightleftharpoons Fe2+(aq) + 2 OH(aq)


No

Senyawa

Rumus Kimia

Reaksi Ionisasi

1

Asam Asetat

CH3COOH

CH3COOH ? CH3COO-  + H+

2

Asam Arsenat

H3AsO4

H3AsO4 ? AsO4- + 3H+

3

Asam Benzoat

C6H5COOH

C6H5COOH ? C6H5COO- + H+

4

Asam Borat

H3BO3

H3BO3 ? BO33- + 3H+

5

Asam Karbonat

H2C03

H2C03 ? CO33- + 2H

6

Asam Formiat

HCOOH

HCOOH ? HCOO- + H+

7

Asam Iodida

HI

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