
PRETEST HIDROLISIS GARAM
Quiz
•
Chemistry
•
University
•
Medium
Pitri Aprilia
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hidrolisis merupakan reaksi antara air dengan kation atau anion garam menghasilkan ion H3O+ dan OH- karena terjadi pemecahan garam menjadi kation dan anionnya oleh air.
BENAR
SALAH
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Garam yang berasal dari asam lemah dan basa kuat akan bersifat basa karena mengalami hidrolisis anion menghasilkan ion OH-. Sehingga ion OH- didalam air lebih banyakk daripada ion H3O+.
BENAR
SALAH
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Larutan garam yang berasal dari asam lemah dan basa lemah akan bersifat asam, apabila …
Ka < Kb
Ka > Kb
Kb > Ka
Ka = Kb
Kw = Ka Kb
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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 ditunjukan oleh nomor
1 dan 2
2 dan 3
2 dan 4
3 dan 4
4 dan 5
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diantara larutan berikut yang dapat membentuk larutan garam terhidrolisis sebagian dan bersifat asam adalah …
20 mL CH3COOH 0,1 M + 20 mL KOH 0,2 M
20 mL H2SO4 0,1 M + 20 mL Ba(OH)2 0,1 M
20 mL NH4OH 0,1 M + 20 mL HCl 0,1 M
20 mL Ca(OH)2 0,1 M + 20 mL HCl 0,1 M
20 mL HCN 0,1 M + 20 mL NaOH 0,1 M
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Larutan asam HA 0,1 M akan memberikan warna yang sama dengan larutan HCl 0,001 M jika ditetesi dengan indikator universal. Hitunglah nilai Ka HA
0,001
0,00001
0,0001
0,0003
0,0005
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan gambar tabel dibawah!
Berdasarkan data tabel di atas, data yang tepat untuk mengisi bagian titik-titik pada nomor larutan (1), (2), dan (3) berturut-turut adalah…
Parsial, CH3COO + H2O ↔ CH3COOH + OH- , Merah
Total, CH3COO + H2O ↔ CH3COOH + OH- , Biru
Total, CH3COO + H2O ↔ CH3COOH + OH- , Merah
Parsial, CH3COO + H2O ↔ CH3COO- + OH-, Biru
Parsial, CH3COO + H2O ↔ CH3COOH + OH- , Biru
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