Larutan asam basa
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Transcript of Larutan asam basa
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LARUTAN ASAM BASA
Kelas XI semester 2
By. Andriyani, S.Pd
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chemistry
SK/KD
Standar Kompetensi:4. Memahami sifat-sifat larutan
asam-basa, metode pengukuran, dan terapannya
Kompetensi Dasar:4.1.Mendeskripsikan teori-teori
asam basa dengan menentukan sifat larutan dan menghitung pH larutan.
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chemistry
Indikator Pembelajaran
• Menjelaskan pengertian asam dan basa menurut Arrhenius
• Menjelaskan pengertian asam dan basa menurut Bronsted dan Lowry
• Menuliskan persamaan reaksi asam dan basa menurut Bronsted dan Lowry dan menunjukkan pasangan asam dan basa konjugasinya
• Menjelaskan pengertian asam dan basa menurut Lewis
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chemistry
Larutan Asam Basa
A. Konsep Asam Basa1. Teori Asam Basa
ArhenniusAsam : Zat yang dalam air
menghasilkan ion H+
Cth : HCl H+ + Cl- (Asam Valensi 1)
H2SO4 2H+ + SO42-
( Asam Valensi 2)
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chemistry
Larutan Asam Basa
Basa : Zat yang dalam air menghasilkan ion OH-
Cth: NaOH Na+ + OH-
(Basa valensi 1)
Ca(OH)2 Ca2+ + 2OH- (Basa valensi 2)
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chemistry
Larutan Asam Basa
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chemistry
Larutan Asam Basa
2. Teori Asam Basa Bronsted LowryAsam : Donor proton (H+)Basa : Akseptor proton (H+)
Cth:HCO3
- + H2O CO32- + H3O+
Asam 1 Basa 2 Basa 1 Asam 2
HCO3- + H2O H2CO3 + OH-
Basa 1 Asam 2 Asam 1 Basa2
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chemistry
Larutan Asam Basa
Asam Basa Konyugasi + H+
HCO3- CO3
2- + H+
Asam Basa konyugasi proton
H2O OH- + H+ Asam Basa konyugasi + proton
Basa + H+ Asam konyugasi NH3 + H+ NH4
+
Basa proton Asam Konyugasi
H2O + H+ H3O+ Basa proton Asam konyugasi
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chemistry
Larutan Asam Basa
3. Teori Asam Basa Lewis
Asam : Akseptor pasangan elektron
Basa : Donor pasangan elektronCth:NH3 + H+ NH4
+
Basa Asam H2O + H+ H3O+
Basa Asam
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• Diskusikan dalam kelompokmu No.7 a dan b hal 174, 36 a dan b, 37,38,39 dan 41.
chemistry
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LARUTAN ASAM BASA