UKD1
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
Sri Rahayu
Used 43+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Menurut teori asam-basa Bronsted-Lowry, asam didefinisikan sebagai zat yang .
Meningkatkan [H+] bila dimasukkan ke dalam H2O
Menurunkan [H+] bila dimaasukkan kedalam H2O
Meningkatkan [OH–] bila dimasukkan kedalam H2O
Menerima 1 H+ dari pasangan reaksinya
Memberi 1 H+ dari pasangan reaksinya
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Berdasarkan data tersebut, maka larutan yang bersifat asam adalah .
3, 5, dan 6
3, 4, dan 6
2, 4, dan 6
1, 3, dan 6
1, 2, dan 6
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Contoh bahan alam yang bisa dijadikan indikator alami untuk membedakan larutan asam basa adalah....
Bunga Matahari
Bunga Anggrek
Bunga Melati
Bunga Kamboja
Bunga Mawar
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Larutan yang mempunyai pH lebih dari 7 adalah....
Gula
Alkohol
Amoniak
Asam Nitrat
Asam Klorida
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
pH larutan 100 ml H2SO4 0,02 M adalah . . . .
2 – log 4
2 + log 4
2 + log 2
12 + log 4
12
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Larutan CH3COOH 0,01 M ,Harga Ka = 2,5 x 10-5, nilai kosentrasi ion pH larutan tersebut adalah……
7-log 2,5
5-log 2,5
5 + log 4
4 + log 5
4 - log 5
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Menurut konsep asam-basa Bronsted-Lowry dalam reaksi
NH3 + H2O → NH4+ + OH–
Dapat ditarik kesimpulan…..
H2O adalah asam karena dapat menerima sebuah proton
Amonia dan air adalah pasangan asam-basa konjugat
NH3 dan NH4+ adalah pasangan asam-basa konjugat
NH3 adalah asam karena memberi sebuah proton
NH4+ dan OH– adalah basa kuat
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