F4 HG dan Buffer
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Larutan KCN dalam air akan bersifat basa, reaksi yang menunjukkan terjadinya sifat basa tersebut adalah…
K+ + OH– → KOH
CN– + H+ → HCN
K++ H2O → KOH + H+
CN–+ KOH → KCN + OH–
CN– + H2O → HCN + OH–
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Diantara garam-garam berikut yang mengalami hidrolisis total dalam air adalah…
NH4Cl
NH4CN
KCN
CuSO4
MgSO4
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Garam yang mengalami hidrolisis sebagian dan bersifat asam adalah..
CH3COONa
HCOOK
NH4Cl
KCl
CH3COONH4
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Di antara campuran berikut ini, yang tidak dapat membentuk garam terhidrolisi adalah
100 ml CH3COOH 0,1 M + 100 ml NaOH
100 ml HF 0,1 M + 100 ml KOH 0,1 M
100 ml HCl 0,1 M + 100 ml NaOH 0,1 M
100 ml HCl 0,1 M + 100 ml NH4OH 0,1 M
100 ml HCOOH 0,1 M + 100 ml KOH 0,1 M
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Larutan garam yang mempunyai pH > 7 adalah…
KCl
NaCN
CuSO4
NH4Cl
K2SO4
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Perhatikan persamaan reaksi berikut!
(1) CH3COO− + H2O ⇌ CH3COOH + OH−
(2) CN− + H2O ⇌ HCN + OH−
(3) Al3+ + 3H2O ⇌ Al(OH)3 + 3H+
(4) NH4+ + H2O ⇌ NH4OH + H+
(5) S2− + 2H2O ⇌ H2S + 2OH−
Pasangan reaksi hidrolisis untuk garam yang bersifat asam adalah ….
1 dan 2
1 dan 3
2 dan 3
3 dan 4
4 dan 5
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Jika Ka (CH3COOH) = 1 X 10-5 maka pH larutan CH3COONa 0,1 M adalah .
3
7
9
11
13
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