
SOAL UH BUFFER
Authored by wakhidah isnaeni
Chemistry
1st - 10th Grade
Used 7+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan data percobaan di atas.
Dari data tersebut yang termasuk larutan penyangga adalah....
I
II
III
IV
V
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan tentang larutan penyangga yang paling tepat adalah….
pH larutan penyangga tidak mungkin berubah oleh penambahan asam dan basa.
larutan penyangga dapat dibuat dari campuran garam dengan basa kuat berlebih.
larutan penyangga dapat dibuat dari larutan basa dengan asam kuat berlebih.
larutan penyangga dapat dibuat dari campuran larutan asam lemah dengan basa konjugasinya
larutan penyangga dapat dibuat dari cmpuran asam kuat berlebih dengan basa lemah.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Terdapat beberapa larutan berikut:
(1) 25 mL NaOH 0,1 M;
(2) 25 mL HCN 0,2 M;
(3) 25 mL CH3COOH 0,1 M;
(4) 25 mL NH4OH 0,2 M; dan
(5) 25 mL HCl 0,2 M.
Pasangan senyawa yang dapat membentuk larutan penyangga adalah...
(1) dan (2)
(1) dan (3)
(2) dan (4)
(3) dan (4)
(4) dan (5)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Campuran larutan di bawah ini yang dapat membentuk campuran penyangga adalah ….
larutan HCl dengan larutan NH4Cl
larutan CH3COOH dengan larutan C6H5COOK
larutan C2H5OH dengan larutan C2H5ONa
larutan Ca(OH)2 dengan larutan CaCl2
larutan HCOOH dengan larutan HCOONa
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 50 mL larutan CH3COOH 0,2 M dicampurkan dengan 50 mL larutan CH3COONa sehingga diperoleh larutan buffer dengan pH = 4. Untuk membuat larutan buffer tersebut diperlukan konsentrasi CH3COONa sebesar…
0,01 M
0,02 M
0,1 M
0,2 M
2 M
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tentukan pH larutan penyagga yang di buat dengan mencampurkan 100 ml NH3 0,1 M dengan 100 ml NH4Cl 0.1 M….(Kb NH3 = 10 – 5
5
6
7
8
9
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika 2,24 liter gas NH3 pada kondisi STP dialirkan ke dalam 1 liter larutan NH4Cl 0,1 M (Kb NH3 = 10 – 5 ), maka pH setelah semua gas NH3 tercampur dalam larutan adalah....
7
8
9
10
11
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