asam basa
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
teguh santoso
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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Suatu indikator memberikan warna merah jika diteteskan pada larutan NaOH. Larutan di bawah ini akan menghasilkan warna yang sama jika diteteskan indikator yang sejenis, kecuali ….
Larutan sabun
Larutan soda kue
Larutan amoniak
Larutan cuka
Larutan kalium hidroksida
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Di bawah ini yang termasuk asam bervalensi dua adalah ….
Asam asetat
Asam klorat
Asam sulfat
Asam fosfat
Asam klorida
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Larutan Ba(OH)2 0,005M memiliki pH yang sama dengan ....
0,005 M KOH
0,01 M NaOH
0,01 M NH4OH
0,001 M Ca(OH)2
0,1 M Mg(OH)2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui beberapa asam lemah dengan harga Ka nya masing-masing Ka (HA) = 1,8.10-4; Ka (HB) = 1,8.10-5; Ka (HC) = 6,5.10-4. Urutan penurunan kekuatan asam di atas adalah ....
HA, HB, HC
HA, HC, HB
HC, HA, HB
HC, HB, HA
HB, HA, HC
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pada pelarutan NH3 terjadi kesetimbangan sebagai berikut.
NH3(aq) + H2O(l) ↔ NH4+ (aq) + OH– (aq)
Yang merupakan pasangan asam-basa konjugasi adalah ….
NH3 dan H2O
NH4+ dan OH–
NH3 dan OH–
H2O dan NH4+
H2O dan OH–
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Ketika dicelupi kertas lakmus , larutan cuka memberikan warna merah. Indikator ini akan berwarna biru ketika berada dalam ….
larutan gula
larutan sabun
larutan garam dapur
air jeruk
air teh
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dari reaksi-reaksi asam basa menurut Bronsted-
Lowry di bawah ini:
1. RNH2- + H2O --> RNH3 + OH-
2. H2PO4 + H2O --> HPO4-2 + H3O+
3. HS- + H2O -->H2S + OH-
H2O yang bersifat asam terdapat pada reaksi ….
1
2
3
1 dan 2
1 dan 3
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