
Soal Larutan Penyangga (Buffer)
Authored by Ibrahim Wahyudi
Chemistry
11th Grade
Used 265+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Campuran berikut yang membentuk larutan penyangga adalah ...
10 mL NaOH 0.2 M dan 50 mL CH3COOH 0.1 M
35 mL NaOH 0.2 M dan 70 mL NH3 0.1 M
40 mL NaOH 0.1 M dan 69 mL NH3 0.1 M
50 mL NaOH 0.1 M da 50 mL CH3COOH0.2 M
50 mL NaOH 0.2 M dan 70 mL CH3COOH 0.1 M
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui pasangan pasangan larutan berikut.
1. NaF dan HF
2. HCOOH dan HCOONH4
3. NH3 dan NH4Cl
4. HCl dan MgCl2
Pasangan yang merupakan larutan penyangga terdapat pada nomor . . . .
1 dan 2
1 dan 3
2 dan 3
2 dan 4
3 dan 4
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sistem penyangga yang terdapat dalam tubuh manusia yang berperan dalam meyangga pH darah adalah . . . .
H2CO3 dan HCO3-
H2O dan H3O+
NH3 dan NH4+
H3PO4 dan H2PO4-
H2CO3 dan CO32-
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diantara larutan berikut yang dapat membentuk larutan penyangga dengan pH < 7 adalah . . . .
HCN dan NaCN
H2SO4 dan K2SO4
NaOH dan Na2SO4
NH4OH dan NH4Cl
HNO3 dan Mg(NO3)2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dari data tersebut yang termasuk larutan penyangga adalah . . . .
I
II
III
IV
V
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebanyak 100 mL larutan CH3COOH 0.2 M dicampur dengan 100 mL larutan NaOH 0.1 M. Jika Ka CH3COOH = 10-5, pH larutan setelah dicampurkan adalah ....
2
4
5
6
9
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan penyangga dengan dengan pH =.12 + log 2 dibuat dengan melarutkan garam amonium sulfat (NH4)2SO4 kedalam 200 mL NH3 0.5 M ( Kb =( 1,8 x 10-5). Massa (NH4)2SO4 yang harus ditambahkan sebesar . . . .mg( Ar N = 14, H = 1, O = 16, S = 32)
2,97
4,75
5,94
11,88
17,82
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