Asam Basa
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Medium
Maria Sundus
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 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–
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Senyawa HClO4 dapat bersifat asam maupun basa. Reaksi yang menunjukkan bahwa HClO4 basa adalah ….
HClO4 + NH2– ↔ ClO4– + NH3
HClO4 + NH3 ↔ ClO4– + NH4+
HClO4 + H2O ↔ ClO4– + H3O+
HClO4 + OH– ↔ ClO4– + H2O
HClO4 + N2H5+ ↔ H2ClO4– + N2H4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Yang merupakan pasangan asam-basa
konjugasi dari reaksi : HCl(aq) + H2O(l) --> H3O+ (aq) + Cl-(aq) adalah ….
HCl dan Cl-
H2O dan HCl
H3O+ dan Cl-
H3O+ dan HCl-
H2O dan Cl-
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara pernyataan berikut yang tepat untuk
mendefinisikan basa menurut Arrhenius
adalah ….
donor proton
donor elektron
menghasilkan ion H+
menghasilkan ion OH-
aseptor elektron
5.
MULTIPLE CHOICE QUESTION
30 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
6.
MULTIPLE CHOICE QUESTION
30 sec • 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
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Konsentrasi ion hidrogen dalam larutan yang pH-nya = 3 – log 2 adalah … .
2 × 10–2 M
3 × 10–3 M
2 × 10–3M
0,0001 M
0,003 M
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