ASAM BASA
Quiz
•
Chemistry
•
11th Grade
•
Hard

Ernita Aulia
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Menurut konsep asam basa Bronsted – Lowry, dalam reaksi:
NH3(aq) + H2O(aq) ↔ NH4+(aq) + OH−(aq)
Pernyataan yang benar adalah . . .
NH3 bersifat asam
NH4+ bersifat basa
H2O bersifat asam
H2O bersifat basa
H2O bersifat netral
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam reaksi berikut:
CuSO4(aq) + 4NH3(aq) ↔ [Cu(NH3)4]2+(aq) + SO42-(aq)
Diantara spesi berikut yang berperan sebagai asam Lewis adalah . . .
NH3
Cu2+
[Cu(NH3)4]2+
SO42-
CuSO4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dari reaksi asam basa di bawah ini yang memperlihatkan bahwa NH3 dalam air bersifat basa, adalah….
NH3 + H2O → NH2- + H3O+
NH2- + H2O → NH3 + OH-
NH4+ + H2O → NH3 + H3O+
NH4 + H2O → NH4+ + OH-
NH3 + H3O+ → NH4+ + H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Asam konjugasi dari H2PO4– adalah ….
PO43–
HPO42–
P2O5
H3O+
H3PO4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara larutan berikut yang merupakan asam paling kuat adalah….
HF (Ka = 6,8 x 10-4)
CH3COOH (Ka = 1,7 x 10-5)
HClO (Ka = 5,8 x 10-5)
HCN (Ka = 5,8 x 10-10)
C6H3COOH (Ka = 6,8 x 10-6)
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 0,1 mol CH3COOH terdapat dalam 1 L larutan jika Ka = 10-5 maka derajat dissosiasi larutan tersebut sebesar….
0,2
0,1
0,02
0,01
0,001
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 50 mL larutan HNO3 0,2 M ditambahkan dengan 50 mL KOH 0,4 M. pH larutan campuran yang terbentuk adalah . . .
2
5
7
10
13
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