ASAM dan BASA
Quiz
•
Chemistry
•
11th - 12th Grade
•
Practice Problem
•
Hard
indri sukawati
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
sebanyak 100 cm3 HCl 0,1 M ditambah air sampai volume larutan menjadi 250 cm3. perubahan harga PH larutan HCl setelah diencerkan adalah dari ....
1 menjadi 2 – 2log 2
1 menjadi 2 – log 6,7
1 menjadi 1 – log 25
2 menjadi 2 – log 2
2 menjadi 3 – log 25
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
PH suatu basa lemah bervalensi satu = 10. Maka konsentrasi ion OH- dalam larutan adalah ....
10-10 M
10-6 M
10-5 M
10-4 M
10-2 M
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ion hidrogen sulfit dapat bertindak sebagai basa dalam reaksi dengan zat lain. Pilihan persamaan reaksi yang mendukung pernyataan tersebut ….
HSO3–(aq) + H2O(l) → SO32–(aq) + H3O+(aq)
HSO3–(aq) + NH3(aq) → SO32–(aq) + NH4+(aq)
HSO3–(aq) + CH3COO–(aq) → SO32–(aq) + CH3COOH(aq)
HSO3–(aq) + H2O2(aq) → HSO4–(aq) + H2O(l)
HSO3–(aq) + H2O(l) → H2SO3(aq) + OH–(aq)
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Perhatikan pernyataan berikut!
1. air bersifat asam
2. NH4OH adalah basa konjugasi dari H2O
3. terjadi reaksi NH3 + H2O → NH4OH
4. NH3 dan NH4+ adalah basa dan asam konjugasi
Apabila gas NH3 dialirkan ke dalam air, akan terjadi reaksi kesetimbangan asam-basa. Pernyataan yang benar untuk menjelaskan peristiwa tersebut adalah.…
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Diantara pasangan dibawah ini yang merupakan pasangan asam – basa konjugasi adalah....
NH3 - NH2ˉ
H+ - OHˉ
CH3COOH2+ - CH3COOˉ
PO43ˉ - H2PO4ˉ
H2O - Hˉ
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
harga Ka dari beberapa asam lemah tertera dalam tabel. Asam lemah terkuat berdasarkan data tabel adalah....
HA
HB
HC
HD
HE
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
nilai Kb dari senyawa yg terukur dalam gambar adalah....
1 × 10–5
1 × 10–6
1 × 10–7
1 × 10–8
2 × 10–8
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