
Kesetimbangan Ion dan pH Larutan Garam
Quiz
•
Chemistry
•
1st Grade - Professional Development
•
Practice Problem
•
Medium
Avi Irma Budyastuti
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Persamaan hidrolisis suatu senyawa adalah sebagai berikut.
NH4+ + H2O ↔ NH4OH + H+
Garam yang mengalami hidrolisis seperti persamaan di atas adalah ….
NH4NO2
(NH4)2S
NH4CH3COO
NH4CN
(NH4)2SO4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan persamaan reaksi berikut!
1) CH3COO- + H2O ↔ CH3COOH + OH-
2) CN- + H2O ↔ HCN + OH-
3) Al3+ + 3 H2O ↔ Al(OH)3 + 3 H+
4) NH4+ + H2O ↔ NH4OH + H+
5) S2- + 2 H2O ↔ H2S + 2 OH-
Pasangan garam yang bersifat asam ditunjukkan oleh nomor ….
1 dan 2
2 dan 3
3 dan 4
3 dan 5
4 dan 5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Larutan garam yang berasal dari asam lemah dan basa lemah akan bersifat asam, jika ….
Ka< Kb
Ka> Kb
Kb>Ka
Ka = Kb
Kw = Ka x Kb
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika warna indikator universal larutan 0,1 M CH3COOH sama dengan warna larutan 0,001 M HCl, maka harga Ka dari CH3COOH adalah ….
0,00001
0,00002
0,00003
0,00005
0,00007
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Disajikan beberapa larutan:
1) (NH4)2SO4
2) Na2CO3
3) KCN
4) CH3COONa
5) K2SO4
Pasangan garam yang memiliki pH lebih dari 7 adalah ….
1 dan 2
1 dan 3
1 dan 3
2 dan 5
4 dan 5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan reaksi di bawah ini:
NaCH3COO --> Na+ + CH3COO-
CH3COO- + H2O ⇋ CH3COOH + OH-
Na+ + H2O --> (tidak ada reaksi)
Reaksi di atas termasuk dalam jenis hidolisis ….
garam dari asam kuat dan basa kuat
garam dari asam kuat dan basa lemah
garam dari asam lemah dan basa kuat
garam dari asam lemah dan basa lemah
garam dari asam lemah dan asam lemah
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Garam berikut yang larutannya dalam air tidak terhidrolisis adalah ….
Barium klorida
Natrium sulfida
Tembaga(II) sulfida
Besi(II) klorida
Natrium karbonat
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